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Fix oversight in tsearch type check

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Use IsBinaryCoercible() method instead of custom
is_expected_type/is_text_type functions which was introduced when tsearch2
was moved into core.

Per report by David E. Wheeler
Analysis by Tom Lane
Patch by me
This commit is contained in:
Teodor Sigaev 2015-09-17 19:50:51 +03:00
parent 5f7c804ba1
commit 9acb9007de
1 changed files with 4 additions and 38 deletions
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42
src/backend/utils/adt/tsvector_op.c
View File

@ -65,40 +65,6 @@ typedef struct
static Datum tsvector_update_trigger(PG_FUNCTION_ARGS, bool config_column);
/*
* Check if datatype is the specified type or equivalent to it.
*
* Note: we could just do getBaseType() unconditionally, but since that's
* a relatively expensive catalog lookup that most users won't need, we
* try the straight comparison first.
*/
static bool
is_expected_type(Oid typid, Oid expected_type)
{
if (typid == expected_type)
return true;
typid = getBaseType(typid);
if (typid == expected_type)
return true;
return false;
}
/* Check if datatype is TEXT or binary-equivalent to it */
static bool
is_text_type(Oid typid)
{
/* varchar(n) and char(n) are binary-compatible with text */
if (typid == TEXTOID || typid == VARCHAROID || typid == BPCHAROID)
return true;
/* Allow domains over these types, too */
typid = getBaseType(typid);
if (typid == TEXTOID || typid == VARCHAROID || typid == BPCHAROID)
return true;
return false;
}
/*
* Order: haspos, len, word, for all positions (pos, weight)
*/
@ -1166,7 +1132,7 @@ ts_stat_sql(MemoryContext persistentContext, text *txt, text *ws)
if (SPI_tuptable == NULL ||
SPI_tuptable->tupdesc->natts != 1 ||
!is_expected_type(SPI_gettypeid(SPI_tuptable->tupdesc, 1),
!IsBinaryCoercible(SPI_gettypeid(SPI_tuptable->tupdesc, 1),
TSVECTOROID))
ereport(ERROR,
(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
@ -1352,7 +1318,7 @@ tsvector_update_trigger(PG_FUNCTION_ARGS, bool config_column)
(errcode(ERRCODE_UNDEFINED_COLUMN),
errmsg("tsvector column \"%s\" does not exist",
trigger->tgargs[0])));
if (!is_expected_type(SPI_gettypeid(rel->rd_att, tsvector_attr_num),
if (!IsBinaryCoercible(SPI_gettypeid(rel->rd_att, tsvector_attr_num),
TSVECTOROID))
ereport(ERROR,
(errcode(ERRCODE_DATATYPE_MISMATCH),
@ -1370,7 +1336,7 @@ tsvector_update_trigger(PG_FUNCTION_ARGS, bool config_column)
(errcode(ERRCODE_UNDEFINED_COLUMN),
errmsg("configuration column \"%s\" does not exist",
trigger->tgargs[1])));
if (!is_expected_type(SPI_gettypeid(rel->rd_att, config_attr_num),
if (!IsBinaryCoercible(SPI_gettypeid(rel->rd_att, config_attr_num),
REGCONFIGOID))
ereport(ERROR,
(errcode(ERRCODE_DATATYPE_MISMATCH),
@ -1416,7 +1382,7 @@ tsvector_update_trigger(PG_FUNCTION_ARGS, bool config_column)
(errcode(ERRCODE_UNDEFINED_COLUMN),
errmsg("column \"%s\" does not exist",
trigger->tgargs[i])));
if (!is_text_type(SPI_gettypeid(rel->rd_att, numattr)))
if (!IsBinaryCoercible(SPI_gettypeid(rel->rd_att, numattr), TEXTOID))
ereport(ERROR,
(errcode(ERRCODE_DATATYPE_MISMATCH),
errmsg("column \"%s\" is not of a character type",