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DBLINK_BUILD_SQL_DELETE(PostgreSQL 9.6.3 DocumentatiDBLINK_BUILD_SQL_DELETE(3)

NAME
       dblink_build_sql_delete - builds	a DELETE statement using supplied
       values for primary key field values

SYNOPSIS
       dblink_build_sql_delete(text relname,
			       int2vector primary_key_attnums,
			       integer num_primary_key_atts,
			       text[] tgt_pk_att_vals_array) returns text

DESCRIPTION
       dblink_build_sql_delete can be useful in	doing selective	replication of
       a local table to	a remote database. It builds a SQL DELETE command that
       will delete the row with	the given primary key values.

ARGUMENTS
       relname
	   Name	of a local relation, for example foo or	myschema.mytab.
	   Include double quotes if the	name is	mixed-case or contains special
	   characters, for example "FooBar"; without quotes, the string	will
	   be folded to	lower case.

       primary_key_attnums
	   Attribute numbers (1-based) of the primary key fields, for example
	   1 2.

       num_primary_key_atts
	   The number of primary key fields.

       tgt_pk_att_vals_array
	   Values of the primary key fields to be used in the resulting	DELETE
	   command. Each field is represented in text form.

RETURN VALUE
       Returns the requested SQL statement as text.

NOTES
       As of PostgreSQL	9.0, the attribute numbers in primary_key_attnums are
       interpreted as logical column numbers, corresponding to the column's
       position	in SELECT * FROM relname. Previous versions interpreted	the
       numbers as physical column positions. There is a	difference if any
       column(s) to the	left of	the indicated column have been dropped during
       the lifetime of the table.

EXAMPLES
	   SELECT dblink_build_sql_delete('"MyFoo"', '1	2', 2, '{"1", "b"}');
		      dblink_build_sql_delete
	   ---------------------------------------------
	    DELETE FROM	"MyFoo"	WHERE f1='1' AND f2='b'
	   (1 row)

PostgreSQL 9.6.3		     2017	    DBLINK_BUILD_SQL_DELETE(3)

NAME | SYNOPSIS | DESCRIPTION | ARGUMENTS | RETURN VALUE | NOTES | EXAMPLES

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