[HACKERS] ProcessUtilityHook DropStmt RenameStmt
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Hash: SHA1
Hi!
I try to catch a DropStmt and convert it to a Rename Stmt, like petere's
pg_trashcan, but i don't like to create new schema. I only like to
rename the table in case of a drop table query.
Is this possible with something like:
ProcessUtility (Node * parsetree,
const char *queryString,
ParamListInfo params,
bool isTopLevel,
DestReceiver * dest, char *completionTag)
{
if (nodeTag(parsetree) == T_DropStmt)
{
DropStmt *stmt = (DropStmt *) parsetree;
if (stmt-removeType == OBJECT_TABLE)
{
RenameStmt *newstmt = makeNode(RenameStmt);
newstmt-objectType = stmt-removeType;
newstmt-newname = new_name;
parsetree = (Node *) newstmt;
}
(*prev_ProcessUtility) (parsetree, queryString,context, params,
dest, completionTag);
}
regards
ge0has
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[HACKERS] How to use Makefile - pgxs without gcc -O2 ?
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 hi, is there any hint to tell pgxs to compile with gcc -O0 (CFLAGS) ? regards geohas -BEGIN PGP SIGNATURE- Version: GnuPG v1 Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQEcBAEBAgAGBQJTvA4AAAoJEJFGMlQe7wR/6PAIAIy6619E9WpksRxaT+t132Py +jsiIhuj0qfyRHglILmyQLITc1Y3MoTO0jjBfhspBZE/NdOMd2uqf+0+QMIBdy9L vnM36quDUs5Zd0Ix8EWG75l9z4aeRRZG5Sh4pH8gGbOYwWPT9uefl7/4bvIeMD3c 0Zsmgt3nE6F5Yxptud+RQNf4ppOfh+46K0Y24WSXW5V99YuLaOfVJXbe0IyU9Zna /Ib6UqRwKaBoHwqub3jVZTcCKk3CXigqeQ9dJffw0e+3uMOlajRLTQ2CDlZKg6I+ Pakzlwby6szFsMEG13S8e32QuQ/X3lCxPfl2Us+78R4vXpfKSdqvfdIMEtbWTLM= =aUO6 -END PGP SIGNATURE- -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
Re: [HACKERS] How to use Makefile - pgxs without gcc -O2 ?
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Thank you Tom! make CFLAGS=-O0 was it. now gdb doesn't print Value optimized out. regards On 08/07/14 17:45, Tom Lane wrote: geohas li...@hasibether.at writes: is there any hint to tell pgxs to compile with gcc -O0 (CFLAGS) ? I tend to use make PROFILE=-O0 which relies on knowing that PG's make rules append $(PROFILE) to CFLAGS. Alternatively you could just override CFLAGS: make CFLAGS=whatever but this requires knowing exactly what configure put into CFLAGS so that you don't remove any flags that you still want. regards, tom lane -BEGIN PGP SIGNATURE- Version: GnuPG v1 Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQEcBAEBAgAGBQJTvBP3AAoJEJFGMlQe7wR/ACYIAJufplHygGUpKft8+S0W/Mpu +tLX8bWpFd9Zg1fD1+gC0AglN6hSmiBc1TpSejOSruVUnFRoIAPbzDp+lSUpR4Hm nC99Zjr71Qosinrwh3upLcN+CvM5jG+J5SLJfjTK1z5CLR0imudTQLXrNw8j0rFu mgH5gKYa+/idxKnG1Hf8dzvdGIUOiRxDvX0F+FXgESedur6/voYgA6utdQBjHVLS rfdNncWtcvswNhvhBfaZX30Nv9w+tiY/i+d/fR5mxU1D6RPDDy2JDIiQcX4ZstaS 1Rc4GYfH780TJxxp8whZ1cVgCcUC6G1cC23bvBfScuZn14+1qMsyHX/AjQRpugQ= =lDtn -END PGP SIGNATURE- -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
[HACKERS] Does changing attribute order breaks something?
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Hi! Are there any known issues when changing the attnums? like : airport=# update pg_attribute set attnum = 3 where attname = 'abc' and attrelid = 18328; UPDATE 1 airport=# update pg_attribute set attnum = 2 where attname = 'foo' and attrelid = 18328; UPDATE 1 Does something break or are there any other ideas to change the order of columns? regard geohas -BEGIN PGP SIGNATURE- Version: GnuPG v1 Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQEcBAEBAgAGBQJTsZJMAAoJEJFGMlQe7wR/WL4H/32LaOBR5jKL4kvmCNKeItIF g8EFPf4gJS9SleX0n6m7ctuKUkGQTkD6Ae7Azv0YyiMzJATgXlMHFUojj2JdyGar yvPF2pxEzTwLPkST0cOuC68k/6KxZBvpy5FBaSFNAI1mExOTyNpO8H7lk6zWxw34 Iw8IWdayBqStdZ4HVMVTp6Vq6ReWpRKf/ekcbTIp9EKpimz0RsLafO3b0J1epv6t w5VHCMLMuE8QtKuYaGkQ1+OwgKUiZQT/8vp4F4c5DIIYqpWWa4JjoNVmOA0leaVm I1IFhNlo59jnPIRNR5/mIzezeA2LxZhuY4EOX6+zLy3iuja7KbdO6wXt1zedWBY= =0KWv -END PGP SIGNATURE- -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
[HACKERS] Hooks Docu - list of hooks
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Hi to all! I am searching for a documentation of hooks in PG, all i found was a presentation in the wiki and some modules from 2ndQuadrant and petere on github. The last three weeks i was reading the source code to get some information. Is there a list of possible hooks, or maybe a little docu or overview? Especially hooks to catch Insert, Update and Delete Stmts and SubQuerys. It would help a lot to finish / write a log into Tables Module. Please excuse my mail, if there was a similar question on the list, i subscribed today and a simple search in the archive showd no results. regards geohas PS: I've an excuse for my bad english - i'am austrian ;) -BEGIN PGP SIGNATURE- Version: GnuPG v1 Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQEcBAEBAgAGBQJTqVetAAoJEJFGMlQe7wR/ae0H/Rkt0G5d6kspgWhPyN/aIWIS wTYKDdxDWt+EeyuCg7SWx/UxJLW22wnWKxmLjvfkT+/ibkCv5qmYRLMOh+cvH0O9 AimWP7fZX+VpYSfpmm/SuvuwUM3OQiM3iwU6MIpu4XfrulAD3F94/aafNp3D2jBK Fz/J/Sjmr9LN/YBuE99i6asUJG669m4ISsmMpNwXPAh3wv+A3sN0dhvDCFJ11iCL hIXqktMpm60iI5sIQUPUjgSTHFTj3aGuKtX3OCWPM4CHoaHwDNtq1klHeuiLSb3y enjMW4tvTWtPw8DIkEgpatn8gsJvXVIjfsZPiTsp8HbN2evhkYxsgfV89R8usRU= =vA51 -END PGP SIGNATURE- -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
Re: [HACKERS] Hooks Docu - list of hooks
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 24/06/14 12:59, Abhijit Menon-Sen wrote: At 2014-06-24 12:49:17 +0200, li...@hasibether.at wrote: Is there a list of possible hooks, or maybe a little docu or overview? The best I found was git grep _hook_type and then read the code to understand when and why the hook was called. Especially hooks to catch Insert, Update and Delete Stmts and SubQuerys. It would help a lot to finish / write a log into Tables Module. Look at how pgaudit does it: https://github.com/2ndQuadrant/pgaudit I already tried pgaudit ;), one of the best examples, it helped me much. The code has comments about how the various available hooks are used. (I was planning to implement a bgwriter that wrote log messages to a table, which sounds a bit like what you want to do.) The module i'm thinking of, working on, is a bit inspired from pgaudit and petere's pg_trashcan. It should copy every created table in a shadow-schema with extra columns for record on / record off and Userid (this is already working ;)). In case of a drop statement it should rename the table in the shadow schema XXX-droped-Date. Now i am trying to catch the planned Stmts, ... It should work without triggers - because the shadow schema should only be visible for user postgres. regards geohas -- Abhijit -BEGIN PGP SIGNATURE- Version: GnuPG v1 Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQEcBAEBAgAGBQJTqWQ4AAoJEJFGMlQe7wR/8CEIAJihWVGc//dDHGF9lDtMo3Ds v1Xhd5U9n1tLL/Cx0/cqnslKctdfSCY2I/ptjNSDFO8U/YdUjNdPf4nYvxn0gjKR n8VuC61BDr6qHFQvlJE7GLv2hs2GCxFM5dEgnV7foJjT18C/VgnSRFulJzxU87EZ 8uKG53+CM9ERDa5P9py9jyvrJJvIAXk9AAfevU9g+jimwK9OntwkC7ZfyVWEDwfr x7LDyrzhge/EIco01pzJSimuVd0BPvTQ8V7XUTpy25xS+D8968wE8eRBaMWXH0b2 KR5lju+sz+SyVQKildcyExOEQWN3PgVmST5USAy9cAzPIuic+yR+qsa5H2VRTFI= =ZYct -END PGP SIGNATURE- -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
