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Back out use of palloc0 in place if palloc/MemSet. Seems constant len

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to MemSet is a performance boost.
This commit is contained in:
Bruce Momjian
2002-11-11 03:02:20 +00:00
parent 5d283d89cb
commit 75fee4535d
38 changed files with 212 additions and 110 deletions
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11
src/backend/utils/adt/varbit.c
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@ -9,7 +9,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/adt/varbit.c,v 1.27 2002/11/10 07:25:14 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/adt/varbit.c,v 1.28 2002/11/11 03:02:19 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -107,8 +107,9 @@ bit_in(PG_FUNCTION_ARGS)
bitlen, atttypmod);
len = VARBITTOTALLEN(atttypmod);
result = (VarBit *) palloc(len);
/* set to 0 so that *r is always initialised and string is zero-padded */
result = (VarBit *) palloc0(len);
MemSet(result, 0, len);
VARATT_SIZEP(result) = len;
VARBITLEN(result) = atttypmod;
@ -231,8 +232,9 @@ bit(PG_FUNCTION_ARGS)
VARBITLEN(arg), len);
rlen = VARBITTOTALLEN(len);
result = (VarBit *) palloc(rlen);
/* set to 0 so that string is zero-padded */
result = (VarBit *) palloc0(rlen);
MemSet(result, 0, rlen);
VARATT_SIZEP(result) = rlen;
VARBITLEN(result) = len;
@ -314,8 +316,9 @@ varbit_in(PG_FUNCTION_ARGS)
atttypmod);
len = VARBITTOTALLEN(bitlen);
result = (VarBit *) palloc(len);
/* set to 0 so that *r is always initialised and string is zero-padded */
result = (VarBit *) palloc0(len);
MemSet(result, 0, len);
VARATT_SIZEP(result) = len;
VARBITLEN(result) = Min(bitlen, atttypmod);