8 Commits (b9e8ffcd5d1a3d45b2f697ea944931f56367c86b)

Author	SHA1	Message	Date
Tom Lane	061168d38f	Code review for FETCH/MOVE 0 changes. Improve documentation, do the ... right thing with the destination when FETCH 0 can't return a row, don't try to stuff LONG_MAX into an int value.	23 years ago
Bruce Momjian	33f0108df8	Cause FETCH 1 to return the current cursor row, or zero if at ... beginning/end of cursor. Have MOVE return 0/1 depending on cursor position. Matches SQL spec. Pass cursor counter from parser as a long rather than int. Doc updates.	23 years ago
Tom Lane	5bab36e9f6	Revise executor APIs so that all per-query state structure is built in ... a per-query memory context created by CreateExecutorState --- and destroyed by FreeExecutorState. This provides a final solution to the longstanding problem of memory leaked by various ExecEndNode calls.	23 years ago
Tom Lane	1fd0c59e25	Phase 1 of read-only-plans project: cause executor state nodes to point ... to plan nodes, not vice-versa. All executor state nodes now inherit from struct PlanState. Copying of plan trees has been simplified by not storing a list of SubPlans in Plan nodes (eliminating duplicate links). The executor still needs such a list, but it can build it during ExecutorStart since it has to scan the plan tree anyway. No initdb forced since no stored-on-disk structures changed, but you will need a full recompile because of node-numbering changes.	23 years ago
Bruce Momjian	4e5a947d1c	Make MOVE/FETCH 0 actually move/fetch 0. Add MOVE LAST to move to end ... of cursor.	23 years ago
Bruce Momjian	e50f52a074	pgindent run.	24 years ago
Tom Lane	959e61e917	Remove global variable scanCommandId in favor of storing a command ID ... in snapshots, per my proposal of a few days ago. Also, tweak heapam.c routines (heap_insert, heap_update, heap_delete, heap_mark4update) to be passed the command ID to use, instead of doing GetCurrentCommandID. For catalog updates they'll still get passed current command ID, but for updates generated from the main executor they'll get passed the command ID saved in the snapshot the query is using. This should fix some corner cases associated with functions and triggers that advance current command ID while an outer query is still in progress.	24 years ago
Tom Lane	71dc300a37	The contents of command.c, creatinh.c, define.c, remove.c and rename.c ... have been divided according to the type of object manipulated - so ALTER TABLE code is in tablecmds.c, aggregate commands in aggregatecmds.c and so on. A few common support routines remain in define.c (prototypes in src/include/commands/defrem.h). No code has been changed except for includes to reflect the new files. The prototypes for aggregatecmds.c, functioncmds.c, operatorcmds.c, and typecmds.c remain in src/include/commands/defrem.h. From John Gray <jgray@azuli.co.uk>	24 years ago