aboutsummaryrefslogtreecommitdiff
path: root/src/include/parser/parse_node.h
Commit message (Collapse)AuthorAge
...
* Implement sharable row-level locks, and use them for foreign key referencesTom Lane2005-04-28
| | | | | | | | | | | | | | | to eliminate unnecessary deadlocks. This commit adds SELECT ... FOR SHARE paralleling SELECT ... FOR UPDATE. The implementation uses a new SLRU data structure (managed much like pg_subtrans) to represent multiple- transaction-ID sets. When more than one transaction is holding a shared lock on a particular row, we create a MultiXactId representing that set of transactions and store its ID in the row's XMAX. This scheme allows an effectively unlimited number of row locks, just as we did before, while not costing any extra overhead except when a shared lock actually has to be shared. Still TODO: use the regular lock manager to control the grant order when multiple backends are waiting for a row lock. Alvaro Herrera and Tom Lane.
* Tag appropriate files for rc3PostgreSQL Daemon2004-12-31
| | | | | | | | Also performed an initial run through of upgrading our Copyright date to extend to 2005 ... first run here was very simple ... change everything where: grep 1996-2004 && the word 'Copyright' ... scanned through the generated list with 'less' first, and after, to make sure that I only picked up the right entries ...
* Pgindent run for 8.0.Bruce Momjian2004-08-29
|
* Update copyright to 2004.Bruce Momjian2004-08-29
|
* Support assignment to subfields of composite columns in UPDATE and INSERT.Tom Lane2004-06-09
| | | | | | | | As a side effect, cause subscripts in INSERT targetlists to do something more or less sensible; previously we evaluated such subscripts and then effectively ignored them. Another side effect is that UPDATE-ing an element or slice of an array value that is NULL now produces a non-null result, namely an array containing just the assigned-to positions.
* make sure the $Id tags are converted to $PostgreSQL as well ...PostgreSQL Daemon2003-11-29
|
* Update copyrights to 2003.Bruce Momjian2003-08-04
|
* pgindent run.Bruce Momjian2003-08-04
|
* Infrastructure for deducing Param types from context, in the same wayTom Lane2003-04-29
| | | | | | | | | | | that the types of untyped string-literal constants are deduced (ie, when coerce_type is applied to 'em, that's what the type must be). Remove the ancient hack of storing the input Param-types array as a global variable, and put the info into ParseState instead. This touches a lot of files because of adjustment of routine parameter lists, but it's really not a large patch. Note: PREPARE statement still insists on exact specification of parameter types, but that could easily be relaxed now, if we wanted to do so.
* First phase of work on array improvements. ARRAY[x,y,z] constructorTom Lane2003-04-08
| | | | | | | expressions, ARRAY(sub-SELECT) expressions, some array functions. Polymorphic functions using ANYARRAY/ANYELEMENT argument and return types. Some regression tests in place, documentation is lacking. Joe Conway, with some kibitzing from Tom Lane.
* Preliminary code review for domain CHECK constraints patch: add documentation,Tom Lane2002-12-12
| | | | | | | | make VALUE a non-reserved word again, use less invasive method of passing ConstraintTestValue into transformExpr, fix problems with nested constraint testing, do correct thing with NULL result from a constraint expression, remove memory leak. Domain checks still need much more work if we are going to allow ALTER DOMAIN, however.
* Extend pg_cast castimplicit column to a three-way value; this allows usTom Lane2002-09-18
| | | | | | | | | | | | | | | | | | | | | | | | to be flexible about assignment casts without introducing ambiguity in operator/function resolution. Introduce a well-defined promotion hierarchy for numeric datatypes (int2->int4->int8->numeric->float4->float8). Change make_const to initially label numeric literals as int4, int8, or numeric (never float8 anymore). Explicitly mark Func and RelabelType nodes to indicate whether they came from a function call, explicit cast, or implicit cast; use this to do reverse-listing more accurately and without so many heuristics. Explicit casts to char, varchar, bit, varbit will truncate or pad without raising an error (the pre-7.2 behavior), while assigning to a column without any explicit cast will still raise an error for wrong-length data like 7.3. This more nearly follows the SQL spec than 7.2 behavior (we should be reporting a 'completion condition' in the explicit-cast cases, but we have no mechanism for that, so just do silent truncation). Fix some problems with enforcement of typmod for array elements; it didn't work at all in 'UPDATE ... SET array[n] = foo', for example. Provide a generalized array_length_coerce() function to replace the specialized per-array-type functions that used to be needed (and were missing for NUMERIC as well as all the datetime types). Add missing conversions int8<->float4, text<->numeric, oid<->int8. initdb forced.
* Update copyright to 2002.Bruce Momjian2002-06-20
|
* Operators live in namespaces. CREATE/DROP/COMMENT ON OPERATOR takeTom Lane2002-04-16
| | | | | | | | | | qualified operator names directly, for example CREATE OPERATOR myschema.+ ( ... ). To qualify an operator name in an expression you need to write OPERATOR(myschema.+) (thanks to Peter for suggesting an escape hatch). I also took advantage of having to reformat pg_operator to fix something that'd been bugging me for a while: mergejoinable operators should have explicit links to the associated cross-data-type comparison operators, rather than hardwiring an assumption that they are named < and >.
* New pgindent run with fixes suggested by Tom. Patch manually reviewed,Bruce Momjian2001-11-05
| | | | initdb/regression tests pass.
* Another pgindent run. Fixes enum indenting, and improves #endifBruce Momjian2001-10-28
| | | | spacing. Also adds space for one-line comments.
* pgindent run on all C files. Java run to follow. initdb/regressionBruce Momjian2001-10-25
| | | | tests pass.
* pgindent run. Make it all clean.Bruce Momjian2001-03-22
|
* Change scoping of table and join refnames to conform to SQL92: a JOINTom Lane2001-02-14
| | | | | | | | | clause with an alias is a <subquery> and therefore hides table references appearing within it, according to the spec. This is the same as the preliminary patch I posted to pgsql-patches yesterday, plus some really grotty code in ruleutils.c to reverse-list a query tree with the correct alias name depending on context. I'd rather not have done that, but unless we want to force another initdb for 7.1, there's no other way for now.
* Change Copyright from PostgreSQL, Inc to PostgreSQL Global Development Group.Bruce Momjian2001-01-24
|
* Make DROP TABLE rollback-able: postpone physical file delete until commit.Tom Lane2000-11-08
| | | | | | | | | (WAL logging for this is not done yet, however.) Clean up a number of really crufty things that are no longer needed now that DROP behaves nicely. Make temp table mapper do the right things when drop or rename affecting a temp table is rolled back. Also, remove "relation modified while in use" error check, in favor of locking tables at first reference and holding that lock throughout the statement.
* Subselects in FROM clause, per ISO syntax: FROM (SELECT ...) [AS] alias.Tom Lane2000-09-29
| | | | | | | | | (Don't forget that an alias is required.) Views reimplemented as expanding to subselect-in-FROM. Grouping, aggregates, DISTINCT in views actually work now (he says optimistically). No UNION support in subselects/views yet, but I have some ideas about that. Rule-related permissions checking moved out of rewriter and into executor. INITDB REQUIRED!
* First cut at full support for OUTER JOINs. There are still a few looseTom Lane2000-09-12
| | | | | ends to clean up (see my message of same date to pghackers), but mostly it works. INITDB REQUIRED!
* Repair list-vs-node confusion that resulted in failure for INNER JOIN ON.Tom Lane2000-05-12
| | | | | Make it behave correctly when there are more than two tables being joined, also. Update regression test expected outputs.
* Ye-old pgindent run. Same 4-space tabs.Bruce Momjian2000-04-12
|
* Carry column aliases from the parser frontend. Enables queries likeThomas G. Lockhart2000-02-15
| | | | | | | SELECT a FROM t1 tx (a); Allow join syntax, including queries like SELECT * FROM t1 NATURAL JOIN t2; Update RTE structure to hold column aliases in an Attr structure.
* Add:Bruce Momjian2000-01-26
| | | | | | * Portions Copyright (c) 1996-2000, PostgreSQL, Inc to all files copyright Regents of Berkeley. Man, that's a lot of files.
* Remove bogus code in oper_exact --- if it didn't find an exactTom Lane1999-08-23
| | | | | | | | | match then it tried for a self-commutative operator with the reversed input data types. This is pretty silly; there could never be such an operator, except maybe in binary-compatible-type scenarios, and we have oper_inexact for that. Besides which, the oprsanity regress test would complain about such an operator. Remove nonfunctional code and simplify routine calling convention accordingly.
* Rewrite parser's handling of INSERT ... SELECT so that processingTom Lane1999-07-19
| | | | | | | | | of the SELECT part of the statement is just like a plain SELECT. All INSERT-specific processing happens after the SELECT parsing is done. This eliminates many problems, e.g. INSERT ... SELECT ... GROUP BY using the wrong column labels. Ensure that DEFAULT clauses are coerced to the target column type, whether or not stored clause produces the right type. Substantial cleanup of parser's array support.
* Change #include's to use <> and "" as appropriate.Bruce Momjian1999-07-15
|
* Clean up #include in /include directory. Add scripts for checking includes.Bruce Momjian1999-07-15
|
* Rip out QueryTreeList structure, root and branch. QuerytreeTom Lane1999-05-13
| | | | | | | | | | lists are now plain old garden-variety Lists, allocated with palloc, rather than specialized expansible-array data allocated with malloc. This substantially simplifies their handling and eliminates several sources of memory leakage. Several basic types of erroneous queries (syntax error, attempt to insert a duplicate key into a unique index) now demonstrably leak zero bytes per query.
* OK, folks, here is the pgindent output.Bruce Momjian1998-09-01
|
* pgindent run before 6.3 release, with Thomas' requested changes.Bruce Momjian1998-02-26
|
* Pass attypmod through to executor by adding to Var and Resdom.Bruce Momjian1998-02-10
|
* Inline fastgetattr and others so data access does not use functionBruce Momjian1998-01-31
| | | | calls.
* Add Var.varlevelup to code. More parser cleanup.Bruce Momjian1998-01-20
|
* Create SubLink nodes in parser for Vadim.Bruce Momjian1998-01-19
|
* Creates the SubLink structure, and the Query->hasSubLink field,Bruce Momjian1998-01-17
| | | | | | | | with supporting code. Creates SubLink node in gram.y. psql.c patch for newatttypmod field.
* Remove Query->qry_aggs and qry_numaggs and replace with Query->hasAggs.Bruce Momjian1998-01-15
| | | | | | | | | Pass List* of Aggregs into executor, and create needed array there. No longer need to double-processs Aggregs with second copy in Query. Fix crash when doing: select sum(x+1) from test where 1 > 0;
* Make parser functions static where possible.Bruce Momjian1997-11-26
|
* Cleanup up include files.Bruce Momjian1997-11-26
|
* Break parser functions into smaller files, group together.Bruce Momjian1997-11-25
generated by cgit v1.2.3 (git 2.25.1) at 2025-07-27 15:40:40 +0000