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Refer to the default foreign key match style as MATCH SIMPLE internally.

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Previously we followed the SQL92 wording, "MATCH <unspecified>", but since
SQL99 there's been a less awkward way to refer to the default style.

In addition to the code changes, pg_constraint.confmatchtype now stores
this match style as 's' (SIMPLE) rather than 'u' (UNSPECIFIED).  This
doesn't affect pg_dump or psql because they use pg_get_constraintdef()
to reconstruct foreign key definitions.  But other client-side code might
examine that column directly, so this change will have to be marked as
an incompatibility in the 9.3 release notes.
This commit is contained in:
Tom Lane
2012-06-17 20:16:07 -04:00
parent bb7520cc26
commit f5297bdfe4
10 changed files with 134 additions and 98 deletions
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4
src/backend/commands/trigger.c
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@ -805,7 +805,7 @@ ConvertTriggerToFK(CreateTrigStmt *stmt, Oid funcoid)
char *constr_name;
char *fk_table_name;
char *pk_table_name;
char fk_matchtype = FKCONSTR_MATCH_UNSPECIFIED;
char fk_matchtype = FKCONSTR_MATCH_SIMPLE;
List *fk_attrs = NIL;
List *pk_attrs = NIL;
StringInfoData buf;
@ -831,7 +831,7 @@ ConvertTriggerToFK(CreateTrigStmt *stmt, Oid funcoid)
if (strcmp(strVal(arg), "FULL") == 0)
fk_matchtype = FKCONSTR_MATCH_FULL;
else
fk_matchtype = FKCONSTR_MATCH_UNSPECIFIED;
fk_matchtype = FKCONSTR_MATCH_SIMPLE;
continue;
}
if (i % 2)