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authorTom Lane <tgl@sss.pgh.pa.us>2010-12-19 12:48:34 -0500
committerTom Lane <tgl@sss.pgh.pa.us>2010-12-19 12:48:34 -0500
commitabc10262696e53773c9a8c9f279bbd464b464190 (patch)
tree9626bc02f37b0e92549fc815f6bedbba7f9728b9 /src/backend/utils/adt/tsquery.c
parentdcb09b595f88a3bca6097a6acc17bf2ec935d55f (diff)
downloadpostgresql-abc10262696e53773c9a8c9f279bbd464b464190.tar.gz
postgresql-abc10262696e53773c9a8c9f279bbd464b464190.zip
Fix erroneous parsing of tsquery input "... & !(subexpression) | ..."
After parsing a parenthesized subexpression, we must pop all pending ANDs and NOTs off the stack, just like the case for a simple operand. Per bug #5793. Also fix clones of this routine in contrib/intarray and contrib/ltree, where input of types query_int and ltxtquery had the same problem. Back-patch to all supported versions.
Diffstat (limited to 'src/backend/utils/adt/tsquery.c')
-rw-r--r--src/backend/utils/adt/tsquery.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/backend/utils/adt/tsquery.c b/src/backend/utils/adt/tsquery.c
index db9236a4741..a155c933e26 100644
--- a/src/backend/utils/adt/tsquery.c
+++ b/src/backend/utils/adt/tsquery.c
@@ -371,8 +371,8 @@ makepol(TSQueryParserState state,
case PT_OPEN:
makepol(state, pushval, opaque);
- if (lenstack && (opstack[lenstack - 1] == OP_AND ||
- opstack[lenstack - 1] == OP_NOT))
+ while (lenstack && (opstack[lenstack - 1] == OP_AND ||
+ opstack[lenstack - 1] == OP_NOT))
{
lenstack--;
pushOperator(state, opstack[lenstack]);