1 -- Evergreen DB patch XXXX.schema.replace_field-default-value.sql
3 -- Return the input XML when no replace rule is provided
7 -- check whether patch can be applied
8 SELECT evergreen.upgrade_deps_block_check('0588', :eg_version);
10 CREATE OR REPLACE FUNCTION vandelay.replace_field ( target_xml TEXT, source_xml TEXT, field TEXT ) RETURNS TEXT AS $_$
17 parsed_target := vandelay.strip_field( target_xml, ''); -- this dance normalizes the format of the xml for the IF below
18 xml_output := parsed_target; -- if there are no replace rules, just return the input
20 FOR curr_field IN SELECT UNNEST( STRING_TO_ARRAY(field, ',') ) LOOP -- naive split, but it's the same we use in the perl
22 xml_output := vandelay.strip_field( parsed_target, curr_field);
24 IF xml_output <> parsed_target AND curr_field ~ E'~' THEN
25 -- we removed something, and there was a regexp restriction in the curr_field definition, so proceed
26 xml_output := vandelay.add_field( xml_output, source_xml, curr_field, 1 );
27 ELSIF curr_field !~ E'~' THEN
28 -- No regexp restriction, add the curr_field
29 xml_output := vandelay.add_field( xml_output, source_xml, curr_field, 0 );
32 parsed_target := xml_output; -- in prep for any following loop iterations