Forgot to mention the error from the postgresql log :
2018-09-16 08:43:20 EDT 6027 DETAIL: Failed process was running: insert into mariel_Test values(2,2);
2018-09-16 08:43:20 EDT 6027 LOG: terminating any other active server processes
2018-09-16 08:43:20 EDT db1 23253 WARNING: terminating connection because of crash of another server process
2018-09-16 08:43:20 EDT db1 23253 DETAIL: The postmaster has commanded this server process to roll back the current transaction and exit, because another server process exited abnormally and possibly corrupted shared memory.
2018-09-16 08:43:20 EDT db1 23253 HINT: In a moment you should be able to reconnect to the database and repeat your command.
2018-09-16 08:43:20 EDT 22311 WARNING: terminating connection because of crash of another server process
2018-09-16 08:43:20 EDT 22311 DETAIL: The postmaster has commanded this server process to roll back the current transaction and exit, because another server process exited abnormally and possibly corrupted shared memory.
2018-09-16 08:43:20 EDT 22311 HINT: In a moment you should be able to reconnect to the database and repeat your command.
2018-09-16 08:43:20 EDT db2 22316 WARNING: terminating connection because of crash of another server process
2018-09-16 08:43:20 EDT db2 22316 DETAIL: The postmaster has commanded this server process to roll back the current transaction and exit, because another server process exited abnormally and possibly corrupted shared memory.
2018-09-16 08:43:20 EDT db2 22316 HINT: In a moment you should be able to reconnect to the database and repeat your command.
2018-09-16 08:43:20 EDT db2 22318 WARNING: terminating connection because of crash of another server process
2018-09-16 08:43:20 EDT db2 22318 DETAIL: The postmaster has commanded this server process to roll back the current transaction and exit, because another server process exited abnormally and possibly corrupted shared memory.
2018-09-16 08:43:20 EDT db2 22318 HINT: In a moment you should be able to reconnect to the database and repeat your command.
2018-09-16 08:43:20 EDT 6027 LOG: all server processes terminated; reinitializing
2018-09-16 08:43:21 EDT 26960 LOG: database system was interrupted; last known up at 2018-09-16 08:39:06 EDT
2018-09-16 08:43:21 EDT 26960 LOG: database system was not properly shut down; automatic recovery in progress
2018-09-16 08:43:21 EDT 26960 LOG: invalid record length at 142/3B33FC8: wanted 24, got 0
2018-09-16 08:43:21 EDT 26960 LOG: redo is not required
2018-09-16 08:43:21 EDT 26960 LOG: checkpoint starting: end-of-recovery immediate
בתאריך יום א׳, 16 בספט׳ 2018 ב-15:40 מאת Mariel Cherkassky <mariel.cherkassky@xxxxxxxxx>:
Hi,I solved the error with with primary key by specifying the option (key:true) in the creation of the foreign table :CREATE FOREIGN TABLE mariel_test(id integer OPTIONS (key 'true'),b text) SERVER sqlite_server OPTIONS (table 'MARIEL_TEST');However, my database crashes when I try to insert/update/delete the table :insert into mariel_Test values(2,2);server closed the connection unexpectedlyThis probably means the server terminated abnormallybefore or while processing the request.The connection to the server was lost. Attempting reset: Failed.Any idea what I can check ?בתאריך יום א׳, 16 בספט׳ 2018 ב-15:01 מאת Mariel Cherkassky <mariel.cherkassky@xxxxxxxxx>:Hi,I installed sqlite_fdw(https://github.com/pgspider/sqlite_fdw) on my postgresql v9.6.As mentioned on the github page, the extension supports writes.However, When I try to insert record into my foreign table my postgresql crushes :sqlite> .schema MARIEL_TESTCREATE TABLE MARIEL_TEST( cola INTEGER PRIMARY KEY, colb TEXT, colc INTEGER);db=# CREATE FOREIGN TABLE MARIEL_TEST_foreign(cola integer, colbtext,colc integer) SERVER sqlite_server OPTIONS (table 'MARIEL_TEST');CREATE FOREIGN TABLEafa=# insert into MARIEL_TEST_foreign values(1,1,1);server closed the connection unexpectedlyThis probably means the server terminated abnormallybefore or while processing the request.The connection to the server was lost. Attempting reset: Failed.!>!> .exit-> ;You are currently not connected to a database.As you can see the database crashed. Does the reason is the extension or something that I should investigate on the database itself ?Moreover I tried to update the table and I'm getting the following error :update MARIEL_TEST_foreign set ip=5 where vipid=2;ERROR: no primary key column specified for foreign tableDETAIL: For UPDATE or DELETE, at least one foreign table column must be marked as primary key column.HINT: Set the option "key" on the columns that belong to the primary key.foreign tables dont support primary key :CREATE FOREIGN TABLE MARIEL_TEST_foreign(id int primary key ) SERVER sqlite_server OPTIONS (table 'MARIEL_TEST');ERROR: primary key constraints are not supported on foreign tablesso how can I update/delete a foreign table that has primary key ? OR with that extension it isnt an option ?Thanks , Mariel.
