Tom Lane 675a313b54 Fix an ancient logic error in plpgsql's exec_stmt_block: it thought it could ... get away with not (re)initializing a local variable if the variable is marked "isconst" and not "isnull". Unfortunately it makes this decision after having already freed the old value, meaning that something like for i in 1..10 loop declare c constant text := 'hi there'; leads to subsequent accesses to freed memory, and hence probably crashes. (In particular, this is why Asif Ali Rehman's bug leads to crash and not just an unexpectedly-NULL value for SQLERRM: SQLERRM is marked CONSTANT and so triggers this error.) The whole thing seems wrong on its face anyway: CONSTANT means that you can't change the variable inside the block, not that the initializer expression is guaranteed not to change value across successive block entries. Hence, remove the "optimization" instead of trying to fix it.		2007-02-08 18:38:31 +00:00
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plperl	Back-patch 8.0 version of plperl_hash_from_tuple() into prior releases	2005-01-26 17:09:28 +00:00
plpgsql	Fix an ancient logic error in plpgsql's exec_stmt_block: it thought it could	2007-02-08 18:38:31 +00:00
plpython	Fix three Python reference leaks in PLy_traceback(). This would result	2006-02-20 20:10:48 +00:00
tcl	Support for qualified type names in PL/Tcl's spi_prepare command.	2003-10-30 02:00:44 +00:00
Makefile	Turn on plpython build by default if we have something that looks like a	2001-08-27 00:29:49 +00:00