Hi,
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I have defined a new command my_command in PostgreSQL. This command takes
the path of ANALYZE and inside analyze.c, I have a function to do some
operations if its my_command.This command takes the input arguments: table
name, column name and an input string.
my_command nation (n_nationkey) 'input string';
When I run this command from command line psql, it works as expected. But
when I call the same command from a java application, the variable that
stores the input string is NULL.
I printed the value of the input string in gram.y file where I have defined
my_command.
fprintf (stderr, "I am inside gram.y %s\n",n->inp_str); and the input
string is printed correctly.
But when I print stmt->inp_str in the function standard_ProcessUtility() of
utility.c for the case T_VacuumStmt, I get the value as NULL. This is as
far as I could trace back from analyze.c.
I am not sure how executing the same command from an application can make a
difference.
gram.y content gist:
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MyStmt:
my_keyword qualified_name name_list my_inp_str
{
VacuumStmt *n = makeNode(VacuumStmt);
n->options = VACOPT_ANALYZE;
n->freeze_min_age = -1;
n->freeze_table_age = -1;
n->relation = $2;
n->va_cols = $3;
n->inp_str = $4;
fprintf (stderr, "I am inside gram.y %s\n",n->inp_str);
$$ = (Node *)n;
};
char *inp_str is added to the struct VacuumStmt in parsenodes.h
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Only the newly added char *inp_str(that is different from ANALYZE) value is
NULL. I was able to retrieve the column name from va_cols.
Any help is appreciated. Thanks!
--
Regards,
Ashoke
