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Revert "Optimize various aggregate deserialization functions"

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This reverts commit 608fd198de.

On 2nd thoughts, the StringInfo API requires that strings are NUL
terminated and pointing directly to the data in a bytea Datum isn't NUL
terminated.

Discussion: https://postgr.es/m/CAApHDvorfO3iBZ=xpiZvp3uHtJVLyFaPBSvcAhAq2HPLnaNSwQ@mail.gmail.com
This commit is contained in:
David Rowley
2023-10-10 14:16:54 +13:00
parent f483b20905
commit 4f3b56eea2
3 changed files with 42 additions and 42 deletions
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48
src/backend/utils/adt/numeric.c
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@ -5190,13 +5190,12 @@ numeric_avg_deserialize(PG_FUNCTION_ARGS)
init_var(&tmp_var);
/*
* Fake up a StringInfo pointing to the bytea's value so we can "receive"
* the serialized aggregate state value.
* Copy the bytea into a StringInfo so that we can "receive" it using the
* standard recv-function infrastructure.
*/
buf.data = VARDATA_ANY(sstate);
buf.len = VARSIZE_ANY_EXHDR(sstate);
buf.maxlen = 0;
buf.cursor = 0;
initStringInfo(&buf);
appendBinaryStringInfo(&buf,
VARDATA_ANY(sstate), VARSIZE_ANY_EXHDR(sstate));
result = makeNumericAggStateCurrentContext(false);
@ -5223,6 +5222,7 @@ numeric_avg_deserialize(PG_FUNCTION_ARGS)
result->nInfcount = pq_getmsgint64(&buf);
pq_getmsgend(&buf);
pfree(buf.data);
free_var(&tmp_var);
@ -5306,13 +5306,12 @@ numeric_deserialize(PG_FUNCTION_ARGS)
init_var(&tmp_var);
/*
* Fake up a StringInfo pointing to the bytea's value so we can "receive"
* the serialized aggregate state value.
* Copy the bytea into a StringInfo so that we can "receive" it using the
* standard recv-function infrastructure.
*/
buf.data = VARDATA_ANY(sstate);
buf.len = VARSIZE_ANY_EXHDR(sstate);
buf.maxlen = 0;
buf.cursor = 0;
initStringInfo(&buf);
appendBinaryStringInfo(&buf,
VARDATA_ANY(sstate), VARSIZE_ANY_EXHDR(sstate));
result = makeNumericAggStateCurrentContext(false);
@ -5343,6 +5342,7 @@ numeric_deserialize(PG_FUNCTION_ARGS)
result->nInfcount = pq_getmsgint64(&buf);
pq_getmsgend(&buf);
pfree(buf.data);
free_var(&tmp_var);
@ -5677,13 +5677,12 @@ numeric_poly_deserialize(PG_FUNCTION_ARGS)
init_var(&tmp_var);
/*
* Fake up a StringInfo pointing to the bytea's value so we can "receive"
* the serialized aggregate state value.
* Copy the bytea into a StringInfo so that we can "receive" it using the
* standard recv-function infrastructure.
*/
buf.data = VARDATA_ANY(sstate);
buf.len = VARSIZE_ANY_EXHDR(sstate);
buf.maxlen = 0;
buf.cursor = 0;
initStringInfo(&buf);
appendBinaryStringInfo(&buf,
VARDATA_ANY(sstate), VARSIZE_ANY_EXHDR(sstate));
result = makePolyNumAggStateCurrentContext(false);
@ -5707,6 +5706,7 @@ numeric_poly_deserialize(PG_FUNCTION_ARGS)
#endif
pq_getmsgend(&buf);
pfree(buf.data);
free_var(&tmp_var);
@ -5868,13 +5868,12 @@ int8_avg_deserialize(PG_FUNCTION_ARGS)
init_var(&tmp_var);
/*
* Fake up a StringInfo pointing to the bytea's value so we can "receive"
* the serialized aggregate state value.
* Copy the bytea into a StringInfo so that we can "receive" it using the
* standard recv-function infrastructure.
*/
buf.data = VARDATA_ANY(sstate);
buf.len = VARSIZE_ANY_EXHDR(sstate);
buf.maxlen = 0;
buf.cursor = 0;
initStringInfo(&buf);
appendBinaryStringInfo(&buf,
VARDATA_ANY(sstate), VARSIZE_ANY_EXHDR(sstate));
result = makePolyNumAggStateCurrentContext(false);
@ -5890,6 +5889,7 @@ int8_avg_deserialize(PG_FUNCTION_ARGS)
#endif
pq_getmsgend(&buf);
pfree(buf.data);
free_var(&tmp_var);