opensourcemirror
/
postgresql
mirror of git://git.postgresql.org/git/postgresql.git
1
0
Fork 0
Code Issues Releases Wiki Activity

Mini update to fix SQLGetInfo to work properly (truncation, NULL)

This commit is contained in:
Byron Nikolaidis 1998-12-31 00:26:06 +00:00
parent 5df20d4449
commit bc9bab0390
6 changed files with 258 additions and 350 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
src/interfaces/odbc/connection.h
View File

@ -63,6 +63,7 @@ typedef enum {
#define CONN_UNABLE_TO_LOAD_DLL 212
#define CONN_OPTION_VALUE_CHANGED 213
#define CONN_VALUE_OUT_OF_RANGE 214
/* Conn_status defines */
#define CONN_IN_AUTOCOMMIT 0x01

13
src/interfaces/odbc/environ.c
View File

@ -187,6 +187,9 @@ int status;
strcpy(szSqlState, "S1109");
break;
case STMT_VALUE_OUT_OF_RANGE:
strcpy(szSqlState, "22003");
break;
default:
strcpy(szSqlState, "S1000");
// also a general error
@ -238,6 +241,10 @@ int status;
case CONN_OPTION_VALUE_CHANGED:
strcpy(szSqlState, "01S02");
break;
case STMT_TRUNCATED:
strcpy(szSqlState, "01004");
// data truncated
break;
case CONN_INIREAD_ERROR:
strcpy(szSqlState, "IM002");
// data source not found
@ -277,6 +284,12 @@ int status;
case STMT_NOT_IMPLEMENTED_ERROR:
strcpy(szSqlState, "S1C00");
break;
case CONN_VALUE_OUT_OF_RANGE:
case STMT_VALUE_OUT_OF_RANGE:
strcpy(szSqlState, "22003");
break;
default:
strcpy(szSqlState, "S1000");
// general error

565
src/interfaces/odbc/info.c
View File

@ -69,7 +69,9 @@ RETCODE SQL_API SQLGetInfo(
static char *func = "SQLGetInfo";
ConnectionClass *conn = (ConnectionClass *) hdbc;
ConnInfo *ci;
char *p;
char *p = NULL;
int len = 0, value = 0;
RETCODE result;
mylog( "%s: entering...fInfoType=%d\n", func, fInfoType);
@ -78,71 +80,46 @@ char *p;
return SQL_INVALID_HANDLE;
}
if (NULL == (char *)rgbInfoValue) {
CC_log_error(func, "Bad rgbInfoValue", conn);
return SQL_INVALID_HANDLE;
}
ci = &conn->connInfo;
switch (fInfoType) {
case SQL_ACCESSIBLE_PROCEDURES: /* ODBC 1.0 */
// can the user call all functions returned by SQLProcedures?
// I assume access permissions could prevent this in some cases(?)
// anyway, SQLProcedures doesn't exist yet.
if (pcbInfoValue) *pcbInfoValue = 1;
strncpy_null((char *)rgbInfoValue, "N", (size_t)cbInfoValueMax);
p = "N";
break;
case SQL_ACCESSIBLE_TABLES: /* ODBC 1.0 */
// is the user guaranteed "SELECT" on every table?
if (pcbInfoValue) *pcbInfoValue = 1;
strncpy_null((char *)rgbInfoValue, "N", (size_t)cbInfoValueMax);
p = "N";
break;
case SQL_ACTIVE_CONNECTIONS: /* ODBC 1.0 */
// how many simultaneous connections do we support?
*((WORD *)rgbInfoValue) = MAX_CONNECTIONS;
if(pcbInfoValue) { *pcbInfoValue = 2; }
len = 2;
value = MAX_CONNECTIONS;
break;
case SQL_ACTIVE_STATEMENTS: /* ODBC 1.0 */
// no limit on the number of active statements.
*((WORD *)rgbInfoValue) = (WORD)0;
if(pcbInfoValue) { *pcbInfoValue = 2; }
len = 2;
value = 0;
break;
case SQL_ALTER_TABLE: /* ODBC 2.0 */
// what does 'alter table' support? (bitmask)
// postgres doesn't seem to let you drop columns.
*((DWORD *)rgbInfoValue) = SQL_AT_ADD_COLUMN;
if(pcbInfoValue) { *pcbInfoValue = 4; }
len = 4;
value = SQL_AT_ADD_COLUMN;
break;
case SQL_BOOKMARK_PERSISTENCE: /* ODBC 2.0 */
// through what operations do bookmarks persist? (bitmask)
// bookmarks don't exist yet, so they're not very persistent.
*((DWORD *)rgbInfoValue) = 0;
if(pcbInfoValue) { *pcbInfoValue = 4; }
len = 4;
value = 0;
break;
case SQL_COLUMN_ALIAS: /* ODBC 2.0 */
// do we support column aliases? guess not.
if (pcbInfoValue) *pcbInfoValue = 1;
strncpy_null((char *)rgbInfoValue, "N", (size_t)cbInfoValueMax);
p = "N";
break;
case SQL_CONCAT_NULL_BEHAVIOR: /* ODBC 1.0 */
// how does concatenation work with NULL columns?
// not sure how you do concatentation, but this way seems
// more reasonable
*((WORD *)rgbInfoValue) = SQL_CB_NON_NULL;
if(pcbInfoValue) { *pcbInfoValue = 2; }
len = 2;
value = SQL_CB_NON_NULL;
break;
// which types of data-conversion do we support?
// currently we don't support any, except converting a type
// to itself.
case SQL_CONVERT_BIGINT:
case SQL_CONVERT_BINARY:
case SQL_CONVERT_BIT:
@ -162,570 +139,448 @@ char *p;
case SQL_CONVERT_TINYINT:
case SQL_CONVERT_VARBINARY:
case SQL_CONVERT_VARCHAR: /* ODBC 1.0 */
// only return the type we were called with (bitmask)
*((DWORD *)rgbInfoValue) = fInfoType;
if(pcbInfoValue) { *pcbInfoValue = 4; }
len = 4;
value = fInfoType;
break;
case SQL_CONVERT_FUNCTIONS: /* ODBC 1.0 */
// which conversion functions do we support? (bitmask)
*((DWORD *)rgbInfoValue) = 0;
if(pcbInfoValue) { *pcbInfoValue = 4; }
len = 4;
value = 0;
break;
case SQL_CORRELATION_NAME: /* ODBC 1.0 */
// I don't know what a correlation name is, so I guess we don't
// support them.
// *((WORD *)rgbInfoValue) = (WORD)SQL_CN_NONE;
// well, let's just say we do--otherwise Query won't work.
*((WORD *)rgbInfoValue) = (WORD)SQL_CN_ANY;
if(pcbInfoValue) { *pcbInfoValue = 2; }
/* Saying no correlation name makes Query not work right.
value = SQL_CN_NONE;
*/
len = 2;
value = SQL_CN_ANY;
break;
case SQL_CURSOR_COMMIT_BEHAVIOR: /* ODBC 1.0 */
// postgres definitely closes cursors when a transaction ends,
// but you shouldn't have to re-prepare a statement after
// commiting a transaction (I don't think)
*((WORD *)rgbInfoValue) = (WORD)SQL_CB_CLOSE;
if(pcbInfoValue) { *pcbInfoValue = 2; }
len = 2;
value = SQL_CB_CLOSE;
break;
case SQL_CURSOR_ROLLBACK_BEHAVIOR: /* ODBC 1.0 */
// see above
*((WORD *)rgbInfoValue) = (WORD)SQL_CB_CLOSE;
if(pcbInfoValue) { *pcbInfoValue = 2; }
len = 2;
value = SQL_CB_CLOSE;
break;
case SQL_DATA_SOURCE_NAME: /* ODBC 1.0 */
p = CC_get_DSN(conn);
if (pcbInfoValue) *pcbInfoValue = strlen(p);
strncpy_null((char *)rgbInfoValue, p, (size_t)cbInfoValueMax);
break;
case SQL_DATA_SOURCE_READ_ONLY: /* ODBC 1.0 */
if (pcbInfoValue) *pcbInfoValue = 1;
sprintf((char *)rgbInfoValue, "%c", CC_is_readonly(conn) ? 'Y' : 'N');
p = CC_is_readonly(conn) ? "Y" : "N";
break;
case SQL_DATABASE_NAME: /* Support for old ODBC 1.0 Apps */
// case SQL_CURRENT_QUALIFIER:
// this tag doesn't seem to be in ODBC 2.0, and it conflicts
// with a valid tag (SQL_TIMEDATE_ADD_INTERVALS).
/* Returning the database name causes problems in MS Query.
It generates query like: "SELECT DISTINCT a FROM byronncrap3 crap3"
p = CC_get_database(conn);
*/
p = ""; // CC_get_database(conn);
if (pcbInfoValue) *pcbInfoValue = strlen(p);
strncpy_null((char *)rgbInfoValue, p, (size_t)cbInfoValueMax);
p = "";
break;
case SQL_DBMS_NAME: /* ODBC 1.0 */
if (pcbInfoValue) *pcbInfoValue = strlen(DBMS_NAME);
strncpy_null((char *)rgbInfoValue, DBMS_NAME, (size_t)cbInfoValueMax);
p = DBMS_NAME;
break;
case SQL_DBMS_VER: /* ODBC 1.0 */
if (pcbInfoValue) *pcbInfoValue = 25;
strncpy_null((char *)rgbInfoValue, DBMS_VERSION, (size_t)cbInfoValueMax);
p = DBMS_VERSION;
break;
case SQL_DEFAULT_TXN_ISOLATION: /* ODBC 1.0 */
// are dirty reads, non-repeatable reads, and phantoms possible? (bitmask)
// by direct experimentation they are not. postgres forces
// the newer transaction to wait before doing something that
// would cause one of these problems.
*((DWORD *)rgbInfoValue) = SQL_TXN_READ_COMMITTED; //SQL_TXN_SERIALIZABLE;
if(pcbInfoValue) { *pcbInfoValue = 4; }
len = 4;
value = SQL_TXN_READ_COMMITTED; //SQL_TXN_SERIALIZABLE;
break;
case SQL_DRIVER_NAME: /* ODBC 1.0 */
// this should be the actual filename of the driver
p = DRIVER_FILE_NAME;
if (pcbInfoValue) *pcbInfoValue = strlen(p);
strncpy_null((char *)rgbInfoValue, p, (size_t)cbInfoValueMax);
break;
case SQL_DRIVER_ODBC_VER:
if (pcbInfoValue) *pcbInfoValue = 5;
strncpy_null((char *)rgbInfoValue, "02.00", (size_t)cbInfoValueMax);
p = DRIVER_ODBC_VER;
break;
case SQL_DRIVER_VER: /* ODBC 1.0 */
p = POSTGRESDRIVERVERSION;
if (pcbInfoValue) *pcbInfoValue = strlen(p);
strncpy_null((char *)rgbInfoValue, p, (size_t)cbInfoValueMax);
break;
case SQL_EXPRESSIONS_IN_ORDERBY: /* ODBC 1.0 */
// can you have expressions in an 'order by' clause?
// not sure about this. say no for now.
if (pcbInfoValue) *pcbInfoValue = 1;
strncpy_null((char *)rgbInfoValue, "N", (size_t)cbInfoValueMax);
p = "N";
break;
case SQL_FETCH_DIRECTION: /* ODBC 1.0 */
// which fetch directions are supported? (bitmask)
*((DWORD *)rgbInfoValue) = globals.use_declarefetch ? (SQL_FD_FETCH_NEXT) : (SQL_FD_FETCH_NEXT |
len = 4;
value = globals.use_declarefetch ? (SQL_FD_FETCH_NEXT) : (SQL_FD_FETCH_NEXT |
SQL_FD_FETCH_FIRST |
SQL_FD_FETCH_LAST |
SQL_FD_FETCH_PRIOR |
SQL_FD_FETCH_ABSOLUTE |
SQL_FD_FETCH_RELATIVE);
if(pcbInfoValue) { *pcbInfoValue = 4; }
break;
case SQL_FILE_USAGE: /* ODBC 2.0 */
// we are a two-tier driver, not a file-based one.
*((WORD *)rgbInfoValue) = (WORD)SQL_FILE_NOT_SUPPORTED;
if(pcbInfoValue) { *pcbInfoValue = 2; }
len = 2;
value = SQL_FILE_NOT_SUPPORTED;
break;
case SQL_GETDATA_EXTENSIONS: /* ODBC 2.0 */
// (bitmask)
*((DWORD *)rgbInfoValue) = (SQL_GD_ANY_COLUMN | SQL_GD_ANY_ORDER | SQL_GD_BOUND | SQL_GD_BLOCK);
if(pcbInfoValue) { *pcbInfoValue = 4; }
len = 4;
value = (SQL_GD_ANY_COLUMN | SQL_GD_ANY_ORDER | SQL_GD_BOUND | SQL_GD_BLOCK);
break;
case SQL_GROUP_BY: /* ODBC 2.0 */
// how do the columns selected affect the columns you can group by?
*((WORD *)rgbInfoValue) = SQL_GB_GROUP_BY_EQUALS_SELECT;
if(pcbInfoValue) { *pcbInfoValue = 2; }
len = 2;
value = SQL_GB_GROUP_BY_EQUALS_SELECT;
break;
case SQL_IDENTIFIER_CASE: /* ODBC 1.0 */
// are identifiers case-sensitive (yes, but only when quoted. If not quoted, they
// default to lowercase)
*((WORD *)rgbInfoValue) = SQL_IC_LOWER;
if(pcbInfoValue) { *pcbInfoValue = 2; }
/* are identifiers case-sensitive (yes, but only when quoted. If not quoted, they
default to lowercase)
*/
len = 2;
value = SQL_IC_LOWER;
break;
case SQL_IDENTIFIER_QUOTE_CHAR: /* ODBC 1.0 */
// the character used to quote "identifiers" (what are they?)
if (pcbInfoValue) *pcbInfoValue = 1;
strncpy_null((char *)rgbInfoValue, PROTOCOL_62(ci) ? " " : "\"", (size_t)cbInfoValueMax);
/* the character used to quote "identifiers" */
p = PROTOCOL_62(ci) ? " " : "\"";
break;
case SQL_KEYWORDS: /* ODBC 2.0 */
// do this later
conn->errormsg = "SQL_KEYWORDS parameter to SQLGetInfo not implemented.";
conn->errornumber = CONN_NOT_IMPLEMENTED_ERROR;
CC_log_error(func, "", conn);
return SQL_ERROR;
p = "";
break;
case SQL_LIKE_ESCAPE_CLAUSE: /* ODBC 2.0 */
// is there a character that escapes '%' and '_' in a LIKE clause?
// not as far as I can tell
if (pcbInfoValue) *pcbInfoValue = 1;
strncpy_null((char *)rgbInfoValue, "N", (size_t)cbInfoValueMax);
/* is there a character that escapes '%' and '_' in a LIKE clause?
not as far as I can tell
*/
p = "N";
break;
case SQL_LOCK_TYPES: /* ODBC 2.0 */
// which lock types does SQLSetPos support? (bitmask)
*((DWORD *)rgbInfoValue) = globals.lie ? (SQL_LCK_NO_CHANGE | SQL_LCK_EXCLUSIVE | SQL_LCK_UNLOCK) : SQL_LCK_NO_CHANGE;
if(pcbInfoValue) { *pcbInfoValue = 4; }
len = 4;
value = globals.lie ? (SQL_LCK_NO_CHANGE | SQL_LCK_EXCLUSIVE | SQL_LCK_UNLOCK) : SQL_LCK_NO_CHANGE;
break;
case SQL_MAX_BINARY_LITERAL_LEN: /* ODBC 2.0 */
// the maximum length of a query is 2k, so maybe we should
// set the maximum length of all these literals to that value?
// for now just use zero for 'unknown or no limit'
// maximum length of a binary literal
*((DWORD *)rgbInfoValue) = 0;
if(pcbInfoValue) { *pcbInfoValue = 4; }
len = 4;
value = 0;
break;
case SQL_MAX_CHAR_LITERAL_LEN: /* ODBC 2.0 */
// maximum length of a character literal
*((DWORD *)rgbInfoValue) = 0;
if(pcbInfoValue) { *pcbInfoValue = 4; }
len = 4;
value = 0;
break;
case SQL_MAX_COLUMN_NAME_LEN: /* ODBC 1.0 */
// maximum length of a column name
*((WORD *)rgbInfoValue) = MAX_COLUMN_LEN;
if(pcbInfoValue) { *pcbInfoValue = 2; }
len = 2;
value = MAX_COLUMN_LEN;
break;
case SQL_MAX_COLUMNS_IN_GROUP_BY: /* ODBC 2.0 */
// maximum number of columns in a 'group by' clause
*((WORD *)rgbInfoValue) = 0;
if(pcbInfoValue) { *pcbInfoValue = 2; }
len = 2;
value = 0;
break;
case SQL_MAX_COLUMNS_IN_INDEX: /* ODBC 2.0 */
// maximum number of columns in an index
*((WORD *)rgbInfoValue) = 0;
if(pcbInfoValue) { *pcbInfoValue = 2; }
len = 2;
value = 0;
break;
case SQL_MAX_COLUMNS_IN_ORDER_BY: /* ODBC 2.0 */
// maximum number of columns in an ORDER BY statement
*((WORD *)rgbInfoValue) = 0;
if(pcbInfoValue) { *pcbInfoValue = 2; }
len = 2;
value = 0;
break;
case SQL_MAX_COLUMNS_IN_SELECT: /* ODBC 2.0 */
*((WORD *)rgbInfoValue) = 0;
if(pcbInfoValue) { *pcbInfoValue = 2; }
len = 2;
value = 0;
break;
case SQL_MAX_COLUMNS_IN_TABLE: /* ODBC 2.0 */
*((WORD *)rgbInfoValue) = 0;
if(pcbInfoValue) { *pcbInfoValue = 2; }
len = 2;
value = 0;
break;
case SQL_MAX_CURSOR_NAME_LEN: /* ODBC 1.0 */
*((WORD *)rgbInfoValue) = MAX_CURSOR_LEN;
if(pcbInfoValue) { *pcbInfoValue = 2; }
len = 2;
value = MAX_CURSOR_LEN;
break;
case SQL_MAX_INDEX_SIZE: /* ODBC 2.0 */
*((DWORD *)rgbInfoValue) = 0;
if(pcbInfoValue) { *pcbInfoValue = 4; }
len = 4;
value = 0;
break;
case SQL_MAX_OWNER_NAME_LEN: /* ODBC 1.0 */
// the maximum length of a table owner's name. (0 == none)
// (maybe this should be 8)
*((WORD *)rgbInfoValue) = (WORD)0;
if(pcbInfoValue) { *pcbInfoValue = 2; }
len = 2;
value = 0;
break;
case SQL_MAX_PROCEDURE_NAME_LEN: /* ODBC 1.0 */
*((WORD *)rgbInfoValue) = 0;
if(pcbInfoValue) { *pcbInfoValue = 2; }
len = 2;
value = 0;
break;
case SQL_MAX_QUALIFIER_NAME_LEN: /* ODBC 1.0 */
*((WORD *)rgbInfoValue) = 0;
if(pcbInfoValue) { *pcbInfoValue = 2; }
len = 2;
value = 0;
break;
case SQL_MAX_ROW_SIZE: /* ODBC 2.0 */
// the maximum size of one row
// here I do know a definite value
*((DWORD *)rgbInfoValue) = 8192;
if(pcbInfoValue) { *pcbInfoValue = 4; }
len = 4;
value = 8192;
break;
case SQL_MAX_ROW_SIZE_INCLUDES_LONG: /* ODBC 2.0 */
// does the preceding value include LONGVARCHAR and LONGVARBINARY
// fields? Well, it does include longvarchar, but not longvarbinary.
if (pcbInfoValue) *pcbInfoValue = 1;
strncpy_null((char *)rgbInfoValue, "Y", (size_t)cbInfoValueMax);
/* does the preceding value include LONGVARCHAR and LONGVARBINARY
fields? Well, it does include longvarchar, but not longvarbinary.
*/
p = "Y";
break;
case SQL_MAX_STATEMENT_LEN: /* ODBC 2.0 */
// there should be a definite value here (2k?)
*((DWORD *)rgbInfoValue) = 0;
if(pcbInfoValue) { *pcbInfoValue = 4; }
/* maybe this should be 8192? */
len = 4;
value = 0;
break;
case SQL_MAX_TABLE_NAME_LEN: /* ODBC 1.0 */
*((WORD *)rgbInfoValue) = MAX_TABLE_LEN;
if(pcbInfoValue) { *pcbInfoValue = 2; }
len = 2;
value = MAX_TABLE_LEN;
break;
case SQL_MAX_TABLES_IN_SELECT: /* ODBC 2.0 */
*((WORD *)rgbInfoValue) = 0;
if(pcbInfoValue) { *pcbInfoValue = 2; }
len = 2;
value = 0;
break;
case SQL_MAX_USER_NAME_LEN:
*(SWORD FAR *)rgbInfoValue = 0;
if(pcbInfoValue) { *pcbInfoValue = 2; }
len = 2;
value = 0;
break;
case SQL_MULT_RESULT_SETS: /* ODBC 1.0 */
// do we support multiple result sets? Not really, but say yes anyway?
if (pcbInfoValue) *pcbInfoValue = 1;
strncpy_null((char *)rgbInfoValue, "Y", (size_t)cbInfoValueMax);
/* Don't support multiple result sets but say yes anyway? */
p = "Y";
break;
case SQL_MULTIPLE_ACTIVE_TXN: /* ODBC 1.0 */
// do we support multiple simultaneous transactions?
if (pcbInfoValue) *pcbInfoValue = 1;
strncpy_null((char *)rgbInfoValue, "Y", (size_t)cbInfoValueMax);
p = "Y";
break;
case SQL_NEED_LONG_DATA_LEN: /* ODBC 2.0 */
if (pcbInfoValue) *pcbInfoValue = 1;
/* Dont need the length, SQLPutData can handle any size and multiple calls */
strncpy_null((char *)rgbInfoValue, "N", (size_t)cbInfoValueMax);
p = "N";
break;
case SQL_NON_NULLABLE_COLUMNS: /* ODBC 1.0 */
*((WORD *)rgbInfoValue) = (WORD)SQL_NNC_NON_NULL;
if(pcbInfoValue) { *pcbInfoValue = 2; }
len = 2;
value = SQL_NNC_NON_NULL;
break;
case SQL_NULL_COLLATION: /* ODBC 2.0 */
// where are nulls sorted?
*((WORD *)rgbInfoValue) = (WORD)SQL_NC_END;
if(pcbInfoValue) { *pcbInfoValue = 2; }
/* where are nulls sorted? */
len = 2;
value = SQL_NC_END;
break;
case SQL_NUMERIC_FUNCTIONS: /* ODBC 1.0 */
// what numeric functions are supported? (bitmask)
// I'm not sure if any of these are actually supported
*((DWORD *)rgbInfoValue) = 0;
if(pcbInfoValue) { *pcbInfoValue = 4; }
len = 4;
value = 0;
break;
case SQL_ODBC_API_CONFORMANCE: /* ODBC 1.0 */
*((WORD *)rgbInfoValue) = SQL_OAC_LEVEL1;
if(pcbInfoValue) { *pcbInfoValue = 2; }
len = 2;
value = SQL_OAC_LEVEL1;
break;
case SQL_ODBC_SAG_CLI_CONFORMANCE: /* ODBC 1.0 */
// can't find any reference to SAG in the ODBC reference manual
// (although it's in the index, it doesn't actually appear on
// the pages referenced)
*((WORD *)rgbInfoValue) = SQL_OSCC_NOT_COMPLIANT;
if(pcbInfoValue) { *pcbInfoValue = 2; }
len = 2;
value = SQL_OSCC_NOT_COMPLIANT;
break;
case SQL_ODBC_SQL_CONFORMANCE: /* ODBC 1.0 */
*((WORD *)rgbInfoValue) = SQL_OSC_CORE;
if(pcbInfoValue) { *pcbInfoValue = 2; }
len = 2;
value = SQL_OSC_CORE;
break;
case SQL_ODBC_SQL_OPT_IEF: /* ODBC 1.0 */
// do we support the "Integrity Enhancement Facility" (?)
// (something to do with referential integrity?)
if (pcbInfoValue) *pcbInfoValue = 1;
strncpy_null((char *)rgbInfoValue, "N", (size_t)cbInfoValueMax);
p = "N";
break;
case SQL_ORDER_BY_COLUMNS_IN_SELECT: /* ODBC 2.0 */
// do the columns sorted by have to be in the list of
// columns selected?
if (pcbInfoValue) *pcbInfoValue = 1;
strncpy_null((char *)rgbInfoValue, "Y", (size_t)cbInfoValueMax);
p = "Y";
break;
case SQL_OUTER_JOINS: /* ODBC 1.0 */
// do we support outer joins?
if (pcbInfoValue) *pcbInfoValue = 1;
strncpy_null((char *)rgbInfoValue, "N", (size_t)cbInfoValueMax);
p = "N";
break;
case SQL_OWNER_TERM: /* ODBC 1.0 */
// what we call an owner
if (pcbInfoValue) *pcbInfoValue = 5;
strncpy_null((char *)rgbInfoValue, "owner", (size_t)cbInfoValueMax);
p = "owner";
break;
case SQL_OWNER_USAGE: /* ODBC 2.0 */
// in which statements can "owners be used"? (what does that mean?
// specifying 'owner.table' instead of just 'table' or something?)
// (bitmask)
*((DWORD *)rgbInfoValue) = 0;
if(pcbInfoValue) { *pcbInfoValue = 4; }
len = 4;
value = 0;
break;
case SQL_POS_OPERATIONS: /* ODBC 2.0 */
// what functions does SQLSetPos support? (bitmask)
*((DWORD *)rgbInfoValue) = globals.lie ? (SQL_POS_POSITION | SQL_POS_REFRESH | SQL_POS_UPDATE | SQL_POS_DELETE | SQL_POS_ADD) : (SQL_POS_POSITION | SQL_POS_REFRESH);
if(pcbInfoValue) { *pcbInfoValue = 4; }
len = 4;
value = globals.lie ? (SQL_POS_POSITION | SQL_POS_REFRESH | SQL_POS_UPDATE | SQL_POS_DELETE | SQL_POS_ADD) : (SQL_POS_POSITION | SQL_POS_REFRESH);
break;
case SQL_POSITIONED_STATEMENTS: /* ODBC 2.0 */
// what 'positioned' functions are supported? (bitmask)
*((DWORD *)rgbInfoValue) = globals.lie ? (SQL_PS_POSITIONED_DELETE |
SQL_PS_POSITIONED_UPDATE |
SQL_PS_SELECT_FOR_UPDATE) : 0;
if(pcbInfoValue) { *pcbInfoValue = 4; }
len = 4;
value = globals.lie ? (SQL_PS_POSITIONED_DELETE |
SQL_PS_POSITIONED_UPDATE |
SQL_PS_SELECT_FOR_UPDATE) : 0;
break;
case SQL_PROCEDURE_TERM: /* ODBC 1.0 */
// what do we call a procedure?
if (pcbInfoValue) *pcbInfoValue = 9;
strncpy_null((char *)rgbInfoValue, "procedure", (size_t)cbInfoValueMax);
p = "procedure";
break;
case SQL_PROCEDURES: /* ODBC 1.0 */
// do we support procedures?
if (pcbInfoValue) *pcbInfoValue = 1;
strncpy_null((char *)rgbInfoValue, "Y", (size_t)cbInfoValueMax);
p = "Y";
break;
case SQL_QUALIFIER_LOCATION: /* ODBC 2.0 */
// where does the qualifier go (before or after the table name?)
// we don't really use qualifiers, so...
*((WORD *)rgbInfoValue) = SQL_QL_START;
if(pcbInfoValue) { *pcbInfoValue = 2; }
len = 2;
value = SQL_QL_START;
break;
case SQL_QUALIFIER_NAME_SEPARATOR: /* ODBC 1.0 */
// not really too sure what a qualifier is supposed to do either
// (specify the name of a database in certain cases?), so nix
// on that, too.
if (pcbInfoValue) *pcbInfoValue = 0;
strncpy_null((char *)rgbInfoValue, "", (size_t)cbInfoValueMax);
p = "";
break;
case SQL_QUALIFIER_TERM: /* ODBC 1.0 */
// what we call a qualifier
if (pcbInfoValue) *pcbInfoValue = 0;
strncpy_null((char *)rgbInfoValue, "", (size_t)cbInfoValueMax);
p = "";
break;
case SQL_QUALIFIER_USAGE: /* ODBC 2.0 */
// where can qualifiers be used? (bitmask)
// nowhere
*((DWORD *)rgbInfoValue) = 0;
if(pcbInfoValue) { *pcbInfoValue = 4; }
len = 4;
value = 0;
break;
case SQL_QUOTED_IDENTIFIER_CASE: /* ODBC 2.0 */
// are "quoted" identifiers case-sensitive? YES
*((WORD *)rgbInfoValue) = SQL_IC_SENSITIVE;
if(pcbInfoValue) { *pcbInfoValue = 2; }
/* are "quoted" identifiers case-sensitive? YES! */
len = 2;
value = SQL_IC_SENSITIVE;
break;
case SQL_ROW_UPDATES: /* ODBC 1.0 */
// Driver doesn't support keyset-driven or mixed cursors, so
// not much point in saying row updates are supported
if (pcbInfoValue) *pcbInfoValue = 1;
strncpy_null((char *)rgbInfoValue, globals.lie ? "Y" : "N", (size_t)cbInfoValueMax);
/* Driver doesn't support keyset-driven or mixed cursors, so
not much point in saying row updates are supported
*/
p = globals.lie ? "Y" : "N";
break;
case SQL_SCROLL_CONCURRENCY: /* ODBC 1.0 */
// what concurrency options are supported BY THE CURSOR? (bitmask)
*((DWORD *)rgbInfoValue) = globals.lie ? (SQL_SCCO_READ_ONLY |
SQL_SCCO_LOCK |
SQL_SCCO_OPT_ROWVER |
SQL_SCCO_OPT_VALUES) : (SQL_SCCO_READ_ONLY);
if(pcbInfoValue) { *pcbInfoValue = 4; }
len = 4;
value = globals.lie ? (SQL_SCCO_READ_ONLY |
SQL_SCCO_LOCK |
SQL_SCCO_OPT_ROWVER |
SQL_SCCO_OPT_VALUES) : (SQL_SCCO_READ_ONLY);
break;
case SQL_SCROLL_OPTIONS: /* ODBC 1.0 */
// what options are supported for scrollable cursors? (bitmask)
// for declare/fetch, only FORWARD scrolling is allowed
// otherwise, the result set is STATIC (to SQLExtendedFetch for example)
*((DWORD *)rgbInfoValue) = globals.lie ? (SQL_SO_FORWARD_ONLY |
SQL_SO_STATIC |
SQL_SO_KEYSET_DRIVEN |
SQL_SO_DYNAMIC |
SQL_SO_MIXED) : (globals.use_declarefetch ? SQL_SO_FORWARD_ONLY : (SQL_SO_FORWARD_ONLY | SQL_SO_STATIC));
if(pcbInfoValue) { *pcbInfoValue = 4; }
len = 4;
value = globals.lie ? (SQL_SO_FORWARD_ONLY |
SQL_SO_STATIC |
SQL_SO_KEYSET_DRIVEN |
SQL_SO_DYNAMIC |
SQL_SO_MIXED) : (globals.use_declarefetch ? SQL_SO_FORWARD_ONLY : (SQL_SO_FORWARD_ONLY | SQL_SO_STATIC));
break;
case SQL_SEARCH_PATTERN_ESCAPE: /* ODBC 1.0 */
// this is supposed to be the character that escapes '_' or '%'
// in LIKE clauses. as far as I can tell postgres doesn't have one
// (backslash generates an error). returning an empty string means
// no escape character is supported.
if (pcbInfoValue) *pcbInfoValue = 0;
strncpy_null((char *)rgbInfoValue, "", (size_t)cbInfoValueMax);
p = "";
break;
case SQL_SERVER_NAME: /* ODBC 1.0 */
p = CC_get_server(conn);
if (pcbInfoValue) *pcbInfoValue = strlen(p);
strncpy_null((char *)rgbInfoValue, p, (size_t)cbInfoValueMax);
break;
case SQL_SPECIAL_CHARACTERS: /* ODBC 2.0 */
// what special characters can be used in table and column names, etc.?
// probably more than just this...
if (pcbInfoValue) *pcbInfoValue = 1;
strncpy_null((char *)rgbInfoValue, "_", (size_t)cbInfoValueMax);
p = "_";
break;
case SQL_STATIC_SENSITIVITY: /* ODBC 2.0 */
// can changes made inside a cursor be detected? (or something like that)
// (bitmask)
// only applies to SQLSetPos, which doesn't exist yet.
*((DWORD *)rgbInfoValue) = globals.lie ? (SQL_SS_ADDITIONS | SQL_SS_DELETIONS | SQL_SS_UPDATES) : 0;
if(pcbInfoValue) { *pcbInfoValue = 4; }
len = 4;
value = globals.lie ? (SQL_SS_ADDITIONS | SQL_SS_DELETIONS | SQL_SS_UPDATES) : 0;
break;
case SQL_STRING_FUNCTIONS: /* ODBC 1.0 */
// what string functions exist? (bitmask)
*((DWORD *)rgbInfoValue) = (SQL_FN_STR_CONCAT |
SQL_FN_STR_LCASE |
SQL_FN_STR_LENGTH |
SQL_FN_STR_LOCATE |
SQL_FN_STR_LTRIM |
SQL_FN_STR_RTRIM |
SQL_FN_STR_SUBSTRING |
SQL_FN_STR_UCASE);
if(pcbInfoValue) { *pcbInfoValue = 4; }
len = 4;
value = (SQL_FN_STR_CONCAT |
SQL_FN_STR_LCASE |
SQL_FN_STR_LENGTH |
SQL_FN_STR_LOCATE |
SQL_FN_STR_LTRIM |
SQL_FN_STR_RTRIM |
SQL_FN_STR_SUBSTRING |
SQL_FN_STR_UCASE);
break;
case SQL_SUBQUERIES: /* ODBC 2.0 */
/* postgres 6.3 supports subqueries */
*((DWORD *)rgbInfoValue) = (SQL_SQ_QUANTIFIED |
SQL_SQ_IN |
SQL_SQ_EXISTS |
SQL_SQ_COMPARISON);
if(pcbInfoValue) { *pcbInfoValue = 4; }
len = 4;
value = (SQL_SQ_QUANTIFIED |
SQL_SQ_IN |
SQL_SQ_EXISTS |
SQL_SQ_COMPARISON);
break;
case SQL_SYSTEM_FUNCTIONS: /* ODBC 1.0 */
// what system functions are supported? (bitmask)
// none of these seem to be supported, either
*((DWORD *)rgbInfoValue) = 0;
if(pcbInfoValue) { *pcbInfoValue = 4; }
len = 4;
value = 0;
break;
case SQL_TABLE_TERM: /* ODBC 1.0 */
// what we call a table
if (pcbInfoValue) *pcbInfoValue = 5;
strncpy_null((char *)rgbInfoValue, "table", (size_t)cbInfoValueMax);
p = "table";
break;
case SQL_TIMEDATE_ADD_INTERVALS: /* ODBC 2.0 */
// what resolutions are supported by the "TIMESTAMPADD scalar
// function" (whatever that is)? (bitmask)
*((DWORD *)rgbInfoValue) = 0;
if(pcbInfoValue) { *pcbInfoValue = 4; }
len = 4;
value = 0;
break;
case SQL_TIMEDATE_DIFF_INTERVALS: /* ODBC 2.0 */
// what resolutions are supported by the "TIMESTAMPDIFF scalar
// function" (whatever that is)? (bitmask)
*((DWORD *)rgbInfoValue) = 0;
if(pcbInfoValue) { *pcbInfoValue = 4; }
len = 4;
value = 0;
break;
case SQL_TIMEDATE_FUNCTIONS: /* ODBC 1.0 */
// what time and date functions are supported? (bitmask)
*((DWORD *)rgbInfoValue) = (SQL_FN_TD_NOW);
if(pcbInfoValue) { *pcbInfoValue = 4; }
len = 4;
value = (SQL_FN_TD_NOW);
break;
case SQL_TXN_CAPABLE: /* ODBC 1.0 */
*((WORD *)rgbInfoValue) = (WORD)SQL_TC_ALL;
// Postgres can deal with create or drop table statements in a transaction
if(pcbInfoValue) { *pcbInfoValue = 2; }
/* Postgres can deal with create or drop table statements in a transaction */
len = 2;
value = SQL_TC_ALL;
break;
case SQL_TXN_ISOLATION_OPTION: /* ODBC 1.0 */
// what transaction isolation options are available? (bitmask)
// only the default--serializable transactions.
*((DWORD *)rgbInfoValue) = SQL_TXN_READ_COMMITTED; // SQL_TXN_SERIALIZABLE;
if(pcbInfoValue) { *pcbInfoValue = 4; }
len = 4;
value = SQL_TXN_READ_COMMITTED; // SQL_TXN_SERIALIZABLE;
break;
case SQL_UNION: /* ODBC 2.0 */
/* unions with all supported in postgres 6.3 */
*((DWORD *)rgbInfoValue) = (SQL_U_UNION | SQL_U_UNION_ALL);
if(pcbInfoValue) { *pcbInfoValue = 4; }
len = 4;
value = (SQL_U_UNION | SQL_U_UNION_ALL);
break;
case SQL_USER_NAME: /* ODBC 1.0 */
p = CC_get_username(conn);
if (pcbInfoValue) *pcbInfoValue = strlen(p);
strncpy_null((char *)rgbInfoValue, p, (size_t)cbInfoValueMax);
break;
default:
@ -736,7 +591,43 @@ char *p;
return SQL_ERROR;
}
return SQL_SUCCESS;
result = SQL_SUCCESS;
mylog("SQLGetInfo: p='%s', len=%d, value=%d, cbMax=%d\n", p?p:"<NULL>", len, value, cbInfoValueMax);
/* NOTE, that if rgbInfoValue is NULL, then no warnings or errors should
result and just pcbInfoValue is returned, which indicates what length
would be required if a real buffer had been passed in.
*/
if (p) { /* char/binary data */
len = strlen(p);
if (rgbInfoValue) {
strncpy_null((char *)rgbInfoValue, p, (size_t)cbInfoValueMax);
if (len >= cbInfoValueMax) {
result = SQL_SUCCESS_WITH_INFO;
conn->errornumber = STMT_TRUNCATED;
conn->errormsg = "The buffer was too small for the result.";
}
}
}
else { /* numeric data */
if (rgbInfoValue) {
if (len == 2 )
*((WORD *)rgbInfoValue) = (WORD) value;
else if (len == 4)
*((DWORD *)rgbInfoValue) = (DWORD) value;
}
}
if (pcbInfoValue)
*pcbInfoValue = len;
return result;
}
// - - - - - - - - -

2
src/interfaces/odbc/misc.h
View File

@ -26,7 +26,7 @@
portion of the registry. You may have to manually add this key.
This logfile is intended for development use, not for an end user!
*/
#define MY_LOG
// #define MY_LOG
/* Uncomment Q_LOG to compile in the qlog() statements (Communications log, i.e. CommLog).

26
src/interfaces/odbc/psqlodbc.h
View File

@ -33,7 +33,20 @@ typedef double SDOUBLE;
typedef UInt4 Oid;
# define ODBCVER 0x0200
/* Driver stuff */
#define ODBCVER 0x0200
#define DRIVER_ODBC_VER "02.00"
#define DRIVERNAME "PostgreSQL ODBC"
#define DBMS_NAME "PostgreSQL"
#define DBMS_VERSION "06.40.0002 PostgreSQL 6.4"
#define POSTGRESDRIVERVERSION "06.40.0002"
#ifdef WIN32
#define DRIVER_FILE_NAME "PSQLODBC.DLL"
#else
#define DRIVER_FILE_NAME "libpsqlodbc.so"
#endif
/* Limits */
#define MAX_MESSAGE_LEN 8192
@ -67,17 +80,6 @@ typedef UInt4 Oid;
#define MAX_KEYLEN 512 // max key of the form "date+outlet+invoice"
#define MAX_STATEMENT_LEN MAX_MESSAGE_LEN
/* Driver stuff */
#define DRIVERNAME "PostgreSQL ODBC"
#define DBMS_NAME "PostgreSQL"
#define DBMS_VERSION "06.40.0002 PostgreSQL 6.4"
#define POSTGRESDRIVERVERSION "06.40.0002"
#ifdef WIN32
#define DRIVER_FILE_NAME "PSQLODBC.DLL"
#else
#define DRIVER_FILE_NAME "libpsqlodbc.so"
#endif
#define PG62 "6.2" /* "Protocol" key setting to force Postgres 6.2 */
#define PG63 "6.3" /* "Protocol" key setting to force postgres 6.3 */

1
src/interfaces/odbc/statement.h
View File

@ -70,6 +70,7 @@ typedef enum {
#define STMT_ROW_OUT_OF_RANGE 21
#define STMT_OPERATION_CANCELLED 22
#define STMT_INVALID_CURSOR_POSITION 23
#define STMT_VALUE_OUT_OF_RANGE 24
/* statement types */
enum {