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Handling system tables errors #16

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Handling system tables errors #16

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4a62ea3
code cleanup for check_systemtables()
chanukya571 May 22, 2023
3af859b
check_systemtables code cleanup
chanukya571 May 22, 2023
15cd30e
comments added for better understanding
chanukya571 May 23, 2023
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21 changes: 12 additions & 9 deletions bin/pg_repack.c
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Original file line number Diff line number Diff line change
Expand Up @@ -422,9 +422,12 @@ is_superuser(void)
return false;
}

/*
* Check if the tables are System tables releated to pg_catalog or information_schema
* throw a meaning full error to use VACUUM FULL for those tables.
*/
bool
check_systemtables()

{
PGresult *query_result = NULL;
int num;
Expand Down Expand Up @@ -454,12 +457,11 @@ check_systemtables()
{
if (PQntuples(query_result) >= 1)
{
CLEARPGRES(query_result);
return true;
}
}

CLEARPGRES(query_result);

return false;
}

Expand Down Expand Up @@ -529,12 +531,6 @@ preliminary_checks(char *errbuf, size_t errsize){
goto cleanup;
}

if (check_systemtables()) {
if (errbuf)
snprintf(errbuf, errsize, "For System Tables Use VACUUM FULL.");
goto cleanup;
}

/* Query the extension version. Exit if no match */
res = execute_elevel("select repack.version(), repack.version_sql()",
0, NULL, DEBUG2);
Expand Down Expand Up @@ -622,6 +618,13 @@ is_requested_relation_exists(char *errbuf, size_t errsize){
int num_relations;
SimpleStringListCell *cell;

/*Handling system tables to return meaningful error message*/
if (check_systemtables()) {
if (errbuf)
snprintf(errbuf, errsize,"For System tables use VACUUM FULL.");
return false;
}

num_relations = simple_string_list_size(parent_table_list) +
simple_string_list_size(table_list);

Expand Down