COPY_PATCH...
Submitted by: Massimo Dal Zotto <dz@cs.unitn.it>
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@ -6,7 +6,7 @@
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*
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*
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* IDENTIFICATION
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* $Header: /cvsroot/pgsql/src/backend/commands/copy.c,v 1.18 1996/12/14 04:58:20 vadim Exp $
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* $Header: /cvsroot/pgsql/src/backend/commands/copy.c,v 1.19 1996/12/19 04:58:24 scrappy Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -49,12 +49,21 @@ static Oid IsTypeByVal(Oid type);
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static void GetIndexRelations(Oid main_relation_oid,
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int *n_indices,
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Relation **index_rels);
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#ifdef COPY_PATCH
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static void CopyReadNewline(FILE *fp, int *newline);
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static char *CopyReadAttribute(FILE *fp, bool *isnull, char *delim, int *newline);
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#else
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static char *CopyReadAttribute(FILE *fp, bool *isnull, char *delim);
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#endif
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static void CopyAttributeOut(FILE *fp, char *string, char *delim);
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static int CountTuples(Relation relation);
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extern FILE *Pfout, *Pfin;
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#ifdef COPY_DEBUG
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static int lineno;
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#endif
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/*
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* DoCopy executes a the SQL COPY statement.
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*/
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@ -433,10 +442,24 @@ CopyFrom(Relation rel, bool binary, bool oids, FILE *fp, char *delim)
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byval[i] = (bool) IsTypeByVal(attr[i]->atttypid);
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}
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#ifdef COPY_DEBUG
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lineno = 0;
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#endif
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while (!done) {
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if (!binary) {
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#ifdef COPY_PATCH
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int newline = 0;
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#endif
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#ifdef COPY_DEBUG
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lineno++;
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elog(DEBUG, "line %d", lineno);
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#endif
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if (oids) {
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#ifdef COPY_PATCH
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string = CopyReadAttribute(fp, &isnull, delim, &newline);
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#else
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string = CopyReadAttribute(fp, &isnull, delim);
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#endif
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if (string == NULL)
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done = 1;
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else {
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@ -446,7 +469,11 @@ CopyFrom(Relation rel, bool binary, bool oids, FILE *fp, char *delim)
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}
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}
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for (i = 0; i < attr_count && !done; i++) {
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#ifdef COPY_PATCH
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string = CopyReadAttribute(fp, &isnull, delim, &newline);
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#else
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string = CopyReadAttribute(fp, &isnull, delim);
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#endif
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if (isnull) {
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values[i] = PointerGetDatum(NULL);
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nulls[i] = 'n';
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@ -463,10 +490,20 @@ CopyFrom(Relation rel, bool binary, bool oids, FILE *fp, char *delim)
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*/
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if (!PointerIsValid(values[i]) &&
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!(rel->rd_att->attrs[i]->attbyval)) {
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#ifdef COPY_DEBUG
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elog(WARN,
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"copy from: line %d - Bad file format", lineno);
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#else
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elog(WARN, "copy from: Bad file format");
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#endif
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}
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}
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}
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#ifdef COPY_PATCH
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if (!done) {
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CopyReadNewline(fp, &newline);
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}
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#endif
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}else { /* binary */
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fread(&len, sizeof(int32), 1, fp);
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if (feof(fp)) {
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@ -773,6 +810,27 @@ inString(char c, char* s)
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return 0;
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}
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#ifdef COPY_PATCH
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/*
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* Reads input from fp until an end of line is seen.
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*/
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void
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CopyReadNewline(FILE *fp, int *newline)
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{
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if (!*newline) {
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#ifdef COPY_DEBUG
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elog(NOTICE, "CopyReadNewline: line %d - extra fields ignored",
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lineno);
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#else
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elog(NOTICE, "CopyReadNewline: line - extra fields ignored");
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#endif
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while (!feof(fp) && (getc(fp) != '\n'));
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}
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*newline = 0;
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}
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#endif
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/*
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* Reads input from fp until eof is seen. If we are reading from standard
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* input, AND we see a dot on a line by itself (a dot followed immediately
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@ -781,13 +839,25 @@ inString(char c, char* s)
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*/
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static char *
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#ifdef COPY_PATCH
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CopyReadAttribute(FILE *fp, bool *isnull, char *delim, int *newline)
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#else
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CopyReadAttribute(FILE *fp, bool *isnull, char *delim)
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#endif
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{
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static char attribute[EXT_ATTLEN];
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char c;
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int done = 0;
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int i = 0;
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#ifdef COPY_PATCH
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/* if last delimiter was a newline return a NULL attribute */
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if (*newline) {
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*isnull = (bool) true;
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return(NULL);
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}
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#endif
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*isnull = (bool) false; /* set default */
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if (feof(fp))
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return(NULL);
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@ -861,6 +931,11 @@ CopyReadAttribute(FILE *fp, bool *isnull, char *delim)
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break;
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}
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}else if (inString(c,delim) || c == '\n') {
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#ifdef COPY_PATCH
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if (c == '\n') {
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*newline = 1;
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}
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#endif
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done = 1;
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}
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if (!done) attribute[i++] = c;
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