Install a data-type-based solution for protecting pg_get_expr().
Since the code underlying pg_get_expr() is not secure against malformed input, and can't practically be made so, we need to prevent miscreants from feeding arbitrary data to it. We can do this securely by declaring pg_get_expr() to take a new datatype "pg_node_tree" and declaring the system catalog columns that hold nodeToString output to be of that type. There is no way at SQL level to create a non-null value of type pg_node_tree. Since the backend-internal operations that fill those catalog columns operate below the SQL level, they are oblivious to the datatype relabeling and don't need any changes.
This commit is contained in:
Tom Lane
parent
8ab6a6b456
commit
303696c3b4
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@ -1,4 +1,4 @@
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<!-- $PostgreSQL: pgsql/doc/src/sgml/catalogs.sgml,v 2.227 2010/08/25 18:18:41 petere Exp $ -->
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<!-- $PostgreSQL: pgsql/doc/src/sgml/catalogs.sgml,v 2.228 2010/09/03 01:34:54 tgl Exp $ -->
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<!--
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Documentation of the system catalogs, directed toward PostgreSQL developers
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-->
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@ -797,7 +797,7 @@
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<row>
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<entry><structfield>adbin</structfield></entry>
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<entry><type>text</type></entry>
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<entry><type>pg_node_tree</type></entry>
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<entry></entry>
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<entry>The internal representation of the column default value</entry>
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</row>
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@ -1917,7 +1917,7 @@
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<row>
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<entry><structfield>conbin</structfield></entry>
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<entry><type>text</type></entry>
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<entry><type>pg_node_tree</type></entry>
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<entry></entry>
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<entry>If a check constraint, an internal representation of the expression</entry>
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</row>
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@ -2915,7 +2915,7 @@
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<row>
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<entry><structfield>indexprs</structfield></entry>
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<entry><type>text</type></entry>
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<entry><type>pg_node_tree</type></entry>
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<entry></entry>
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<entry>
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Expression trees (in <function>nodeToString()</function>
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@ -2928,7 +2928,7 @@
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<row>
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<entry><structfield>indpred</structfield></entry>
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<entry><type>text</type></entry>
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<entry><type>pg_node_tree</type></entry>
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<entry></entry>
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<entry>
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Expression tree (in <function>nodeToString()</function>
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@ -3980,7 +3980,7 @@
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<row>
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<entry><structfield>proargdefaults</structfield></entry>
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<entry><type>text</type></entry>
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<entry><type>pg_node_tree</type></entry>
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<entry></entry>
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<entry>
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Expression trees (in <function>nodeToString()</function> representation)
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@ -4129,7 +4129,7 @@
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<row>
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<entry><structfield>ev_qual</structfield></entry>
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<entry><type>text</type></entry>
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<entry><type>pg_node_tree</type></entry>
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<entry></entry>
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<entry>
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Expression tree (in the form of a
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@ -4140,7 +4140,7 @@
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<row>
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<entry><structfield>ev_action</structfield></entry>
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<entry><type>text</type></entry>
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<entry><type>pg_node_tree</type></entry>
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<entry></entry>
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<entry>
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Query tree (in the form of a
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@ -4839,7 +4839,7 @@
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<row>
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<entry><structfield>tgqual</structfield></entry>
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<entry><type>text</type></entry>
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<entry><type>pg_node_tree</type></entry>
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<entry></entry>
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<entry>Expression tree (in <function>nodeToString()</function>
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representation) for the trigger's <literal>WHEN</> condition, or null
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@ -5622,10 +5622,11 @@
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<row>
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<entry><structfield>typdefaultbin</structfield></entry>
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<entry><type>text</type></entry>
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<entry><type>pg_node_tree</type></entry>
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<entry></entry>
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<entry><para>
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If <structfield>typdefaultbin</> is not null, it is the <function>nodeToString()</function>
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If <structfield>typdefaultbin</> is not null, it is the
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<function>nodeToString()</function>
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representation of a default expression for the type. This is
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only used for domains.
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</para></entry>
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@ -5642,7 +5643,7 @@
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default expression represented by <structfield>typdefaultbin</>. If
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<structfield>typdefaultbin</> is null and <structfield>typdefault</> is
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not, then <structfield>typdefault</> is the external representation of
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the type's default value, which might be fed to the type's input
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the type's default value, which can be fed to the type's input
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converter to produce a constant.
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</para></entry>
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</row>
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@ -1,4 +1,4 @@
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<!-- $PostgreSQL: pgsql/doc/src/sgml/func.sgml,v 1.531 2010/09/01 18:22:29 tgl Exp $ -->
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<!-- $PostgreSQL: pgsql/doc/src/sgml/func.sgml,v 1.532 2010/09/03 01:34:54 tgl Exp $ -->
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<chapter id="functions">
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<title>Functions and Operators</title>
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@ -12746,13 +12746,13 @@ SELECT pg_type_is_visible('myschema.widget'::regtype);
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<entry>get definition of a constraint</entry>
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</row>
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<row>
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<entry><literal><function>pg_get_expr</function>(<parameter>expr_text</parameter>, <parameter>relation_oid</>)</literal></entry>
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<entry><literal><function>pg_get_expr</function>(<parameter>pg_node_tree</parameter>, <parameter>relation_oid</>)</literal></entry>
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<entry><type>text</type></entry>
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<entry>decompile internal form of an expression, assuming that any Vars
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in it refer to the relation indicated by the second parameter</entry>
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</row>
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<row>
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<entry><literal><function>pg_get_expr</function>(<parameter>expr_text</parameter>, <parameter>relation_oid</>, <parameter>pretty_bool</>)</literal></entry>
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<entry><literal><function>pg_get_expr</function>(<parameter>pg_node_tree</parameter>, <parameter>relation_oid</>, <parameter>pretty_bool</>)</literal></entry>
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<entry><type>text</type></entry>
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<entry>decompile internal form of an expression, assuming that any Vars
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in it refer to the relation indicated by the second parameter</entry>
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@ -8,7 +8,7 @@
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* IDENTIFICATION
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* $PostgreSQL: pgsql/src/backend/bootstrap/bootstrap.c,v 1.261 2010/04/20 01:38:52 tgl Exp $
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* $PostgreSQL: pgsql/src/backend/bootstrap/bootstrap.c,v 1.262 2010/09/03 01:34:55 tgl Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -72,7 +72,8 @@ int numattr; /* number of attributes for cur. rel */
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/*
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* Basic information associated with each type. This is used before
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* pg_type is created.
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* pg_type is filled, so it has to cover the datatypes used as column types
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* in the core "bootstrapped" catalogs.
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*
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* XXX several of these input/output functions do catalog scans
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* (e.g., F_REGPROCIN scans pg_proc). this obviously creates some
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@ -122,6 +123,8 @@ static const struct typinfo TypInfo[] = {
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F_XIDIN, F_XIDOUT},
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{"cid", CIDOID, 0, 4, true, 'i', 'p',
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F_CIDIN, F_CIDOUT},
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{"pg_node_tree", PGNODETREEOID, 0, -1, false, 'i', 'x',
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F_PG_NODE_TREE_IN, F_PG_NODE_TREE_OUT},
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{"int2vector", INT2VECTOROID, INT2OID, -1, false, 'i', 'p',
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F_INT2VECTORIN, F_INT2VECTOROUT},
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{"oidvector", OIDVECTOROID, OIDOID, -1, false, 'i', 'p',
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@ -16,7 +16,7 @@
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*
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*
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* IDENTIFICATION
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* $PostgreSQL: pgsql/src/backend/utils/adt/pseudotypes.c,v 1.23 2010/01/02 16:57:55 momjian Exp $
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* $PostgreSQL: pgsql/src/backend/utils/adt/pseudotypes.c,v 1.24 2010/09/03 01:34:55 tgl Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -398,3 +398,58 @@ shell_out(PG_FUNCTION_ARGS)
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PG_RETURN_VOID(); /* keep compiler quiet */
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}
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/*
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* pg_node_tree_in - input routine for type PG_NODE_TREE.
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*
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* pg_node_tree isn't really a pseudotype --- it's real enough to be a table
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* column --- but it presently has no operations of its own, and disallows
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* input too, so its I/O functions seem to fit here as much as anywhere.
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*/
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Datum
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pg_node_tree_in(PG_FUNCTION_ARGS)
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{
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/*
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* We disallow input of pg_node_tree values because the SQL functions that
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* operate on the type are not secure against malformed input.
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*/
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ereport(ERROR,
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(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
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errmsg("cannot accept a value of type pg_node_tree")));
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PG_RETURN_VOID(); /* keep compiler quiet */
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}
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/*
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* pg_node_tree_out - output routine for type PG_NODE_TREE.
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*
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* The internal representation is the same as TEXT, so just pass it off.
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*/
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Datum
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pg_node_tree_out(PG_FUNCTION_ARGS)
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{
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return textout(fcinfo);
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}
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/*
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* pg_node_tree_recv - binary input routine for type PG_NODE_TREE.
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*/
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Datum
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pg_node_tree_recv(PG_FUNCTION_ARGS)
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{
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ereport(ERROR,
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(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
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errmsg("cannot accept a value of type pg_node_tree")));
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PG_RETURN_VOID(); /* keep compiler quiet */
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}
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/*
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* pg_node_tree_send - binary output routine for type PG_NODE_TREE.
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*/
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Datum
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pg_node_tree_send(PG_FUNCTION_ARGS)
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{
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return textsend(fcinfo);
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}
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@ -37,7 +37,7 @@
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* Portions Copyright (c) 1996-2010, PostgreSQL Global Development Group
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* $PostgreSQL: pgsql/src/include/catalog/catversion.h,v 1.597 2010/08/24 06:30:43 itagaki Exp $
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* $PostgreSQL: pgsql/src/include/catalog/catversion.h,v 1.598 2010/09/03 01:34:55 tgl Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -53,6 +53,6 @@
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*/
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/* yyyymmddN */
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#define CATALOG_VERSION_NO 201008241
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#define CATALOG_VERSION_NO 201009021
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#endif
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@ -12,7 +12,7 @@
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* Portions Copyright (c) 1996-2010, PostgreSQL Global Development Group
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* $PostgreSQL: pgsql/src/include/catalog/genbki.h,v 1.6 2010/01/05 01:06:56 tgl Exp $
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* $PostgreSQL: pgsql/src/include/catalog/genbki.h,v 1.7 2010/09/03 01:34:55 tgl Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -35,7 +35,8 @@
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#define DESCR(x) extern int no_such_variable
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#define SHDESCR(x) extern int no_such_variable
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/* PHONY type definition for use in catalog structure definitions only */
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/* PHONY type definitions for use in catalog structure definitions only */
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typedef int aclitem;
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typedef int pg_node_tree;
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#endif /* GENBKI_H */
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@ -8,7 +8,7 @@
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* Portions Copyright (c) 1996-2010, PostgreSQL Global Development Group
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* $PostgreSQL: pgsql/src/include/catalog/pg_attrdef.h,v 1.26 2010/01/05 01:06:56 tgl Exp $
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* $PostgreSQL: pgsql/src/include/catalog/pg_attrdef.h,v 1.27 2010/09/03 01:34:55 tgl Exp $
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*
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* NOTES
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* the genbki.pl script reads this file and generates .bki
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@ -30,10 +30,10 @@
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CATALOG(pg_attrdef,2604)
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{
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Oid adrelid;
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int2 adnum;
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text adbin;
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text adsrc;
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Oid adrelid; /* OID of table containing attribute */
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int2 adnum; /* attnum of attribute */
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pg_node_tree adbin; /* nodeToString representation of default */
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text adsrc; /* human-readable representation of default */
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} FormData_pg_attrdef;
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/* ----------------
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@ -10,7 +10,7 @@
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*
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* Copyright (c) 2002-2010, PostgreSQL Global Development Group
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*
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* $PostgreSQL: pgsql/src/include/catalog/pg_cast.h,v 1.45 2010/07/16 02:15:54 tgl Exp $
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* $PostgreSQL: pgsql/src/include/catalog/pg_cast.h,v 1.46 2010/09/03 01:34:55 tgl Exp $
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*
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* NOTES
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* the genbki.pl script reads this file and generates .bki
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@ -235,6 +235,9 @@ DATA(insert ( 1043 19 1400 i f ));
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DATA(insert ( 18 23 77 e f ));
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DATA(insert ( 23 18 78 e f ));
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/* pg_node_tree can be coerced to, but not from, text */
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DATA(insert ( 194 25 0 i b ));
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/*
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* Datetime category
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*/
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|
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@ -8,7 +8,7 @@
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* Portions Copyright (c) 1996-2010, PostgreSQL Global Development Group
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* $PostgreSQL: pgsql/src/include/catalog/pg_constraint.h,v 1.41 2010/08/07 02:44:07 tgl Exp $
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* $PostgreSQL: pgsql/src/include/catalog/pg_constraint.h,v 1.42 2010/09/03 01:34:55 tgl Exp $
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*
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* NOTES
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* the genbki.pl script reads this file and generates .bki
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@ -129,7 +129,7 @@ CATALOG(pg_constraint,2606)
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/*
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* If a check constraint, nodeToString representation of expression
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*/
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text conbin;
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pg_node_tree conbin;
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/*
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* If a check constraint, source-text representation of expression
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@ -8,7 +8,7 @@
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* Portions Copyright (c) 1996-2010, PostgreSQL Global Development Group
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* $PostgreSQL: pgsql/src/include/catalog/pg_index.h,v 1.50 2010/01/05 01:06:56 tgl Exp $
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* $PostgreSQL: pgsql/src/include/catalog/pg_index.h,v 1.51 2010/09/03 01:34:55 tgl Exp $
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*
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* NOTES
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* the genbki.pl script reads this file and generates .bki
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@ -45,10 +45,10 @@ CATALOG(pg_index,2610) BKI_WITHOUT_OIDS BKI_SCHEMA_MACRO
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int2vector indkey; /* column numbers of indexed cols, or 0 */
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oidvector indclass; /* opclass identifiers */
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int2vector indoption; /* per-column flags (AM-specific meanings) */
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text indexprs; /* expression trees for index attributes that
|
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pg_node_tree indexprs; /* expression trees for index attributes that
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* are not simple column references; one for
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* each zero entry in indkey[] */
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text indpred; /* expression tree for predicate, if a partial
|
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pg_node_tree indpred; /* expression tree for predicate, if a partial
|
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* index; else NULL */
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} FormData_pg_index;
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|
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@ -7,7 +7,7 @@
|
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* Portions Copyright (c) 1996-2010, PostgreSQL Global Development Group
|
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* Portions Copyright (c) 1994, Regents of the University of California
|
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*
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* $PostgreSQL: pgsql/src/include/catalog/pg_proc.h,v 1.581 2010/08/24 06:30:43 itagaki Exp $
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* $PostgreSQL: pgsql/src/include/catalog/pg_proc.h,v 1.582 2010/09/03 01:34:55 tgl Exp $
|
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*
|
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* NOTES
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||||
* The script catalog/genbki.pl reads this file and generates .bki
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@ -57,8 +57,8 @@ CATALOG(pg_proc,1255) BKI_BOOTSTRAP BKI_ROWTYPE_OID(81) BKI_SCHEMA_MACRO
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Oid proallargtypes[1]; /* all param types (NULL if IN only) */
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||||
char proargmodes[1]; /* parameter modes (NULL if IN only) */
|
||||
text proargnames[1]; /* parameter names (NULL if no names) */
|
||||
text proargdefaults; /* list of expression trees for argument
|
||||
* defaults (NULL if none) */
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pg_node_tree proargdefaults; /* list of expression trees for argument
|
||||
* defaults (NULL if none) */
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text prosrc; /* procedure source text */
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text probin; /* secondary procedure info (can be NULL) */
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text proconfig[1]; /* procedure-local GUC settings */
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@ -399,6 +399,15 @@ DESCR("is contained by?");
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DATA(insert OID = 193 ( box_contain_pt PGNSP PGUID 12 1 0 0 f f f t f i 2 0 16 "603 600" _null_ _null_ _null_ _null_ box_contain_pt _null_ _null_ _null_ ));
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DESCR("contains?");
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DATA(insert OID = 195 ( pg_node_tree_in PGNSP PGUID 12 1 0 0 f f f t f i 1 0 194 "2275" _null_ _null_ _null_ _null_ pg_node_tree_in _null_ _null_ _null_ ));
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DESCR("I/O");
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DATA(insert OID = 196 ( pg_node_tree_out PGNSP PGUID 12 1 0 0 f f f t f i 1 0 2275 "194" _null_ _null_ _null_ _null_ pg_node_tree_out _null_ _null_ _null_ ));
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DESCR("I/O");
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DATA(insert OID = 197 ( pg_node_tree_recv PGNSP PGUID 12 1 0 0 f f f t f s 1 0 194 "2281" _null_ _null_ _null_ _null_ pg_node_tree_recv _null_ _null_ _null_ ));
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DESCR("I/O");
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DATA(insert OID = 198 ( pg_node_tree_send PGNSP PGUID 12 1 0 0 f f f t f s 1 0 17 "194" _null_ _null_ _null_ _null_ pg_node_tree_send _null_ _null_ _null_ ));
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DESCR("I/O");
|
||||
|
||||
/* OIDS 200 - 299 */
|
||||
|
||||
DATA(insert OID = 200 ( float4in PGNSP PGUID 12 1 0 0 f f f t f i 1 0 700 "2275" _null_ _null_ _null_ _null_ float4in _null_ _null_ _null_ ));
|
||||
|
|
@ -2317,7 +2326,7 @@ DATA(insert OID = 1662 ( pg_get_triggerdef PGNSP PGUID 12 1 0 0 f f f t f s
|
|||
DESCR("trigger description");
|
||||
DATA(insert OID = 1387 ( pg_get_constraintdef PGNSP PGUID 12 1 0 0 f f f t f s 1 0 25 "26" _null_ _null_ _null_ _null_ pg_get_constraintdef _null_ _null_ _null_ ));
|
||||
DESCR("constraint description");
|
||||
DATA(insert OID = 1716 ( pg_get_expr PGNSP PGUID 12 1 0 0 f f f t f s 2 0 25 "25 26" _null_ _null_ _null_ _null_ pg_get_expr _null_ _null_ _null_ ));
|
||||
DATA(insert OID = 1716 ( pg_get_expr PGNSP PGUID 12 1 0 0 f f f t f s 2 0 25 "194 26" _null_ _null_ _null_ _null_ pg_get_expr _null_ _null_ _null_ ));
|
||||
DESCR("deparse an encoded expression");
|
||||
DATA(insert OID = 1665 ( pg_get_serial_sequence PGNSP PGUID 12 1 0 0 f f f t f s 2 0 25 "25 25" _null_ _null_ _null_ _null_ pg_get_serial_sequence _null_ _null_ _null_ ));
|
||||
DESCR("name of sequence for a serial column");
|
||||
|
|
@ -4170,7 +4179,7 @@ DATA(insert OID = 2507 ( pg_get_indexdef PGNSP PGUID 12 1 0 0 f f f t f s 3
|
|||
DESCR("index description (full create statement or single expression) with pretty-print option");
|
||||
DATA(insert OID = 2508 ( pg_get_constraintdef PGNSP PGUID 12 1 0 0 f f f t f s 2 0 25 "26 16" _null_ _null_ _null_ _null_ pg_get_constraintdef_ext _null_ _null_ _null_ ));
|
||||
DESCR("constraint description with pretty-print option");
|
||||
DATA(insert OID = 2509 ( pg_get_expr PGNSP PGUID 12 1 0 0 f f f t f s 3 0 25 "25 26 16" _null_ _null_ _null_ _null_ pg_get_expr_ext _null_ _null_ _null_ ));
|
||||
DATA(insert OID = 2509 ( pg_get_expr PGNSP PGUID 12 1 0 0 f f f t f s 3 0 25 "194 26 16" _null_ _null_ _null_ _null_ pg_get_expr_ext _null_ _null_ _null_ ));
|
||||
DESCR("deparse an encoded expression with pretty-print option");
|
||||
DATA(insert OID = 2510 ( pg_prepared_statement PGNSP PGUID 12 1 1000 0 f f f t t s 0 0 2249 "" "{25,25,1184,2211,16}" "{o,o,o,o,o}" "{name,statement,prepare_time,parameter_types,from_sql}" _null_ pg_prepared_statement _null_ _null_ _null_ ));
|
||||
DESCR("get the prepared statements for this session");
|
||||
|
|
|
|||
|
|
@ -11,7 +11,7 @@
|
|||
* Portions Copyright (c) 1996-2010, PostgreSQL Global Development Group
|
||||
* Portions Copyright (c) 1994, Regents of the University of California
|
||||
*
|
||||
* $PostgreSQL: pgsql/src/include/catalog/pg_rewrite.h,v 1.35 2010/01/05 01:06:57 tgl Exp $
|
||||
* $PostgreSQL: pgsql/src/include/catalog/pg_rewrite.h,v 1.36 2010/09/03 01:34:55 tgl Exp $
|
||||
*
|
||||
* NOTES
|
||||
* the genbki.pl script reads this file and generates .bki
|
||||
|
|
@ -41,8 +41,8 @@ CATALOG(pg_rewrite,2618)
|
|||
bool is_instead;
|
||||
|
||||
/* NB: remaining fields must be accessed via heap_getattr */
|
||||
text ev_qual;
|
||||
text ev_action;
|
||||
pg_node_tree ev_qual;
|
||||
pg_node_tree ev_action;
|
||||
} FormData_pg_rewrite;
|
||||
|
||||
/* ----------------
|
||||
|
|
|
|||
|
|
@ -8,7 +8,7 @@
|
|||
* Portions Copyright (c) 1996-2010, PostgreSQL Global Development Group
|
||||
* Portions Copyright (c) 1994, Regents of the University of California
|
||||
*
|
||||
* $PostgreSQL: pgsql/src/include/catalog/pg_trigger.h,v 1.39 2010/01/17 22:56:23 tgl Exp $
|
||||
* $PostgreSQL: pgsql/src/include/catalog/pg_trigger.h,v 1.40 2010/09/03 01:34:55 tgl Exp $
|
||||
*
|
||||
* NOTES
|
||||
* the genbki.pl script reads this file and generates .bki
|
||||
|
|
@ -53,7 +53,7 @@ CATALOG(pg_trigger,2620)
|
|||
/* VARIABLE LENGTH FIELDS (note: tgattr and tgargs must not be null) */
|
||||
int2vector tgattr; /* column numbers, if trigger is on columns */
|
||||
bytea tgargs; /* first\000second\000tgnargs\000 */
|
||||
text tgqual; /* WHEN expression, or NULL if none */
|
||||
pg_node_tree tgqual; /* WHEN expression, or NULL if none */
|
||||
} FormData_pg_trigger;
|
||||
|
||||
/* ----------------
|
||||
|
|
|
|||
|
|
@ -8,7 +8,7 @@
|
|||
* Portions Copyright (c) 1996-2010, PostgreSQL Global Development Group
|
||||
* Portions Copyright (c) 1994, Regents of the University of California
|
||||
*
|
||||
* $PostgreSQL: pgsql/src/include/catalog/pg_type.h,v 1.212 2010/01/05 01:06:57 tgl Exp $
|
||||
* $PostgreSQL: pgsql/src/include/catalog/pg_type.h,v 1.213 2010/09/03 01:34:55 tgl Exp $
|
||||
*
|
||||
* NOTES
|
||||
* the genbki.pl script reads this file and generates .bki
|
||||
|
|
@ -199,7 +199,7 @@ CATALOG(pg_type,1247) BKI_BOOTSTRAP BKI_ROWTYPE_OID(71) BKI_SCHEMA_MACRO
|
|||
* a default expression for the type. Currently this is only used for
|
||||
* domains.
|
||||
*/
|
||||
text typdefaultbin; /* VARIABLE LENGTH FIELD */
|
||||
pg_node_tree typdefaultbin; /* VARIABLE LENGTH FIELD */
|
||||
|
||||
/*
|
||||
* typdefault is NULL if the type has no associated default value. If
|
||||
|
|
@ -343,6 +343,10 @@ DESCR("XML content");
|
|||
#define XMLOID 142
|
||||
DATA(insert OID = 143 ( _xml PGNSP PGUID -1 f b A f t \054 0 142 0 array_in array_out array_recv array_send - - - i x f 0 -1 0 _null_ _null_ ));
|
||||
|
||||
DATA(insert OID = 194 ( pg_node_tree PGNSP PGUID -1 f b S f t \054 0 0 0 pg_node_tree_in pg_node_tree_out pg_node_tree_recv pg_node_tree_send - - - i x f 0 -1 0 _null_ _null_ ));
|
||||
DESCR("string representing an internal node tree");
|
||||
#define PGNODETREEOID 194
|
||||
|
||||
/* OIDS 200 - 299 */
|
||||
|
||||
DATA(insert OID = 210 ( smgr PGNSP PGUID 2 t b U f t \054 0 0 0 smgrin smgrout - - - - - s p f 0 -1 0 _null_ _null_ ));
|
||||
|
|
|
|||
|
|
@ -7,7 +7,7 @@
|
|||
* Portions Copyright (c) 1996-2010, PostgreSQL Global Development Group
|
||||
* Portions Copyright (c) 1994, Regents of the University of California
|
||||
*
|
||||
* $PostgreSQL: pgsql/src/include/utils/builtins.h,v 1.355 2010/08/24 06:30:44 itagaki Exp $
|
||||
* $PostgreSQL: pgsql/src/include/utils/builtins.h,v 1.356 2010/09/03 01:34:55 tgl Exp $
|
||||
*
|
||||
*-------------------------------------------------------------------------
|
||||
*/
|
||||
|
|
@ -510,6 +510,10 @@ extern Datum anyelement_in(PG_FUNCTION_ARGS);
|
|||
extern Datum anyelement_out(PG_FUNCTION_ARGS);
|
||||
extern Datum shell_in(PG_FUNCTION_ARGS);
|
||||
extern Datum shell_out(PG_FUNCTION_ARGS);
|
||||
extern Datum pg_node_tree_in(PG_FUNCTION_ARGS);
|
||||
extern Datum pg_node_tree_out(PG_FUNCTION_ARGS);
|
||||
extern Datum pg_node_tree_recv(PG_FUNCTION_ARGS);
|
||||
extern Datum pg_node_tree_send(PG_FUNCTION_ARGS);
|
||||
|
||||
/* regexp.c */
|
||||
extern Datum nameregexeq(PG_FUNCTION_ARGS);
|
||||
|
|
|
|||
|
|
@ -400,22 +400,25 @@ WHERE c.castfunc = p.oid AND
|
|||
-- As of 8.3, this finds the casts from xml to text, varchar, and bpchar,
|
||||
-- because those are binary-compatible while the reverse goes through
|
||||
-- texttoxml(), which does an XML syntax check.
|
||||
SELECT *
|
||||
-- As of 9.1, this finds the cast from pg_node_tree to text, which we
|
||||
-- intentionally do not provide a reverse pathway for.
|
||||
SELECT castsource::regtype, casttarget::regtype, castfunc, castcontext
|
||||
FROM pg_cast c
|
||||
WHERE c.castmethod = 'b' AND
|
||||
NOT EXISTS (SELECT 1 FROM pg_cast k
|
||||
WHERE k.castmethod = 'b' AND
|
||||
k.castsource = c.casttarget AND
|
||||
k.casttarget = c.castsource);
|
||||
castsource | casttarget | castfunc | castcontext | castmethod
|
||||
------------+------------+----------+-------------+------------
|
||||
25 | 1042 | 0 | i | b
|
||||
1043 | 1042 | 0 | i | b
|
||||
650 | 869 | 0 | i | b
|
||||
142 | 25 | 0 | a | b
|
||||
142 | 1043 | 0 | a | b
|
||||
142 | 1042 | 0 | a | b
|
||||
(6 rows)
|
||||
castsource | casttarget | castfunc | castcontext
|
||||
-------------------+-------------------+----------+-------------
|
||||
text | character | 0 | i
|
||||
character varying | character | 0 | i
|
||||
pg_node_tree | text | 0 | i
|
||||
cidr | inet | 0 | i
|
||||
xml | text | 0 | a
|
||||
xml | character varying | 0 | a
|
||||
xml | character | 0 | a
|
||||
(7 rows)
|
||||
|
||||
-- **************** pg_operator ****************
|
||||
-- Look for illegal values in pg_operator fields.
|
||||
|
|
|
|||
|
|
@ -57,18 +57,19 @@ WHERE (p1.typtype = 'c' AND p1.typrelid = 0) OR
|
|||
(0 rows)
|
||||
|
||||
-- Look for basic or enum types that don't have an array type.
|
||||
-- NOTE: as of 8.0, this check finds smgr and unknown.
|
||||
-- NOTE: as of 9.1, this check finds pg_node_tree, smgr, and unknown.
|
||||
SELECT p1.oid, p1.typname
|
||||
FROM pg_type as p1
|
||||
WHERE p1.typtype in ('b','e') AND p1.typname NOT LIKE E'\\_%' AND NOT EXISTS
|
||||
(SELECT 1 FROM pg_type as p2
|
||||
WHERE p2.typname = ('_' || p1.typname)::name AND
|
||||
p2.typelem = p1.oid and p1.typarray = p2.oid);
|
||||
oid | typname
|
||||
-----+---------
|
||||
oid | typname
|
||||
-----+--------------
|
||||
194 | pg_node_tree
|
||||
210 | smgr
|
||||
705 | unknown
|
||||
(2 rows)
|
||||
(3 rows)
|
||||
|
||||
-- Make sure typarray points to a varlena array type of our own base
|
||||
SELECT p1.oid, p1.typname as basetype, p2.typname as arraytype,
|
||||
|
|
|
|||
|
|
@ -318,7 +318,10 @@ WHERE c.castfunc = p.oid AND
|
|||
-- because those are binary-compatible while the reverse goes through
|
||||
-- texttoxml(), which does an XML syntax check.
|
||||
|
||||
SELECT *
|
||||
-- As of 9.1, this finds the cast from pg_node_tree to text, which we
|
||||
-- intentionally do not provide a reverse pathway for.
|
||||
|
||||
SELECT castsource::regtype, casttarget::regtype, castfunc, castcontext
|
||||
FROM pg_cast c
|
||||
WHERE c.castmethod = 'b' AND
|
||||
NOT EXISTS (SELECT 1 FROM pg_cast k
|
||||
|
|
|
|||
|
|
@ -51,7 +51,7 @@ WHERE (p1.typtype = 'c' AND p1.typrelid = 0) OR
|
|||
(p1.typtype != 'c' AND p1.typrelid != 0);
|
||||
|
||||
-- Look for basic or enum types that don't have an array type.
|
||||
-- NOTE: as of 8.0, this check finds smgr and unknown.
|
||||
-- NOTE: as of 9.1, this check finds pg_node_tree, smgr, and unknown.
|
||||
|
||||
SELECT p1.oid, p1.typname
|
||||
FROM pg_type as p1
|
||||
|
|
|
|||
Loading…
Reference in New Issue