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Completed logic for pt-osc preserve triggers

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Issue with some sql, currently working on.
This commit is contained in:
Manjot Singh
2016-05-26 15:57:52 -07:00
parent 19306adcd5
commit 99b8e76143
1 changed files with 126 additions and 14 deletions
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140
bin/pt-online-schema-change
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@@ -10576,6 +10576,12 @@ sub create_triggers {
my $orig_insert_trigger;
my $orig_update_trigger;
my %orig_triggers = (
del => '',
ins => '',
upd => ''
);
if ( $o->get('preserve-triggers') ) {
$cxn->connect();
@@ -10590,8 +10596,6 @@ sub create_triggers {
# find if trigger has begin/end - supply insertion point
my $delete_trigger_ins_point = trigger_ins_point(trigger => $orig_delete_trigger->[3]);
my $insert_trigger_ins_point = trigger_ins_point(trigger => $orig_insert_trigger->[3]);
my $update_trigger_ins_point = trigger_ins_point(trigger => $orig_update_trigger->[3]);
$delete_trigger
= "CREATE TRIGGER `${prefix}_del` AFTER DELETE ON $orig_tbl->{name} "
@@ -10604,19 +10608,19 @@ sub create_triggers {
if($delete_trigger_ins_point) {
$delete_trigger
= "LOCK TABLES $orig_tbl->{name};\n"
. "DROP TRIGGER `$orig_tbl->{db}`.`$orig_delete_trigger->[1]`;\n"
. "DROP TRIGGER IF EXISTS `$orig_tbl->{db}`.`$orig_delete_trigger->[1]`;\n"
. "DELIMITER //\n"
. $delete_trigger . "\n"
. substr($orig_delete_trigger->[3], 0, $delete_trigger_ins_point)
. $delete_trigger_action . ";\n"
. substr($orig_delete_trigger->[3], $delete_trigger_ins_point) . "//\n"
. substr($orig_delete_trigger->[3], $delete_trigger_ins_point) . "; //\n"
. "DELIMITER ;\n"
. "UNLOCK TABLES;";
}
else {
$delete_trigger
= "LOCK TABLES $orig_tbl->{name};\n"
. "DROP TRIGGER `$orig_tbl->{db}`.`$orig_delete_trigger->[1]`;\n"
. "DROP TRIGGER IF EXISTS `$orig_tbl->{db}`.`$orig_delete_trigger->[1]`;\n"
. "DELIMITER //\n"
. $delete_trigger . "\n"
. "BEGIN\n"
@@ -10626,6 +10630,18 @@ sub create_triggers {
. "DELIMITER ;\n"
. "UNLOCK TABLES;";
}
print $delete_trigger;
$orig_triggers{del}
= "LOCK TABLES $orig_tbl->{name};\n"
. "DROP TRIGGER IF EXISTS `${prefix}_del`;\n"
. "DELIMITER //\n"
. "CREATE DEFINER=$orig_delete_trigger->[2] TRIGGER `$orig_delete_trigger->[0]`.`$orig_delete_trigger->[1]` "
. "AFTER DELETE ON $orig_tbl->{name}\n"
. "FOR EACH ROW\n"
. $orig_delete_trigger->[3] . "\n"
. "//\n"
. "DELIMITER ;\n"
. "UNLOCK TABLES;";
}
else {
$delete_trigger
@@ -10636,24 +10652,117 @@ sub create_triggers {
}
if ( $o->get('preserve-triggers') && $orig_insert_trigger) {
# find if trigger has begin/end - supply insertion point
my $insert_trigger_ins_point = trigger_ins_point(trigger => $orig_insert_trigger->[3]);
my $update_trigger_ins_point = trigger_ins_point(trigger => $orig_update_trigger->[3]);
$insert_trigger
= "CREATE TRIGGER `${prefix}_ins` AFTER INSERT ON $orig_tbl->{name} "
. "FOR EACH ROW";
my $insert_trigger_action
= "REPLACE INTO $new_tbl->{name} ($qcols) VALUES ($new_vals)";
if($insert_trigger_ins_point) {
$insert_trigger
= "LOCK TABLES $orig_tbl->{name};\n"
. "DROP TRIGGER IF EXISTS `$orig_tbl->{db}`.`$orig_insert_trigger->[1]`;\n"
. "DELIMITER //\n"
. $insert_trigger . "\n"
. substr($orig_insert_trigger->[3], 0, $insert_trigger_ins_point)
. $insert_trigger_action . ";\n"
. substr($orig_insert_trigger->[3], $insert_trigger_ins_point) . "//\n"
. "DELIMITER ;\n"
. "UNLOCK TABLES;";
}
else {
$insert_trigger
= "LOCK TABLES $orig_tbl->{name};\n"
. "DROP TRIGGER IF EXISTS `$orig_tbl->{db}`.`$orig_insert_trigger->[1]`;\n"
. "DELIMITER //\n"
. $insert_trigger . "\n"
. "BEGIN\n"
. $orig_insert_trigger->[3] . "\n"
. $insert_trigger_action . ";\n"
. "END; //\n"
. "DELIMITER ;\n"
. "UNLOCK TABLES;";
}
$orig_triggers{del}
= "LOCK TABLES $orig_tbl->{name};\n"
. "DROP TRIGGER IF EXISTS `${prefix}_del`;\n"
. "DELIMITER //\n"
. "CREATE DEFINER=$orig_insert_trigger->[2] TRIGGER `$orig_insert_trigger->[0]`.`$orig_insert_trigger->[1]` "
. "AFTER DELETE ON $orig_tbl->{name}\n"
. "FOR EACH ROW\n"
. $orig_insert_trigger->[3] . "\n"
. "//\n"
. "DELIMITER ;\n"
. "UNLOCK TABLES;";
}
else {
$insert_trigger
= "CREATE TRIGGER `${prefix}_ins` AFTER INSERT ON $orig_tbl->{name} "
. "FOR EACH ROW "
. "REPLACE INTO $new_tbl->{name} ($qcols) VALUES ($new_vals)";
$update_trigger
= "CREATE TRIGGER `${prefix}_upd` AFTER UPDATE ON $orig_tbl->{name} "
. "FOR EACH ROW "
. "REPLACE INTO $new_tbl->{name} ($qcols) VALUES ($new_vals)";
}
if ( $o->get('preserve-triggers') && $orig_update_trigger) {
# find if trigger has begin/end - supply insertion point
my $update_trigger_ins_point = trigger_ins_point(trigger => $orig_update_trigger->[3]);
$update_trigger
= "CREATE TRIGGER `${prefix}_upd` AFTER UPDATE ON $orig_tbl->{name} "
. "FOR EACH ROW";
my $update_trigger_action
= "REPLACE INTO $new_tbl->{name} ($qcols) VALUES ($new_vals)";
if($update_trigger_ins_point) {
$update_trigger
= "LOCK TABLES $orig_tbl->{name};\n"
. "DROP TRIGGER IF EXISTS `$orig_tbl->{db}`.`$orig_update_trigger->[1]`;\n"
. "DELIMITER //\n"
. $update_trigger . "\n"
. substr($orig_update_trigger->[3], 0, $update_trigger_ins_point)
. $update_trigger_action . ";\n"
. substr($orig_update_trigger->[3], $update_trigger_ins_point) . "//\n"
. "DELIMITER ;\n"
. "UNLOCK TABLES;";
}
else {
$update_trigger
= "LOCK TABLES $orig_tbl->{name};\n"
. "DROP TRIGGER IF EXISTS `$orig_tbl->{db}`.`$orig_update_trigger->[1]`;\n"
. "DELIMITER //\n"
. $update_trigger . "\n"
. "BEGIN\n"
. $orig_update_trigger->[3] . "\n"
. $update_trigger_action . ";\n"
. "END; //\n"
. "DELIMITER ;\n"
. "UNLOCK TABLES;";
}
$orig_triggers{del}
= "LOCK TABLES $orig_tbl->{name};\n"
. "DROP TRIGGER IF EXISTS `${prefix}_del`;\n"
. "DELIMITER //\n"
. "CREATE DEFINER=$orig_update_trigger->[2] TRIGGER `$orig_update_trigger->[0]`.`$orig_update_trigger->[1]` "
. "AFTER DELETE ON $orig_tbl->{name}\n"
. "FOR EACH ROW\n"
. $orig_update_trigger->[3] . "\n"
. "//\n"
. "DELIMITER ;\n"
. "UNLOCK TABLES;";
}
else {
$insert_trigger
= "CREATE TRIGGER `${prefix}_ins` AFTER INSERT ON $orig_tbl->{name} "
. "FOR EACH ROW "
. "REPLACE INTO $new_tbl->{name} ($qcols) VALUES ($new_vals)";
$update_trigger
= "CREATE TRIGGER `${prefix}_upd` AFTER UPDATE ON $orig_tbl->{name} "
. "FOR EACH ROW "
@@ -10687,6 +10796,9 @@ sub create_triggers {
# (or faked to be created) so if the 2nd trigger
# fails to create, we know to only drop the 1st.
push @trigger_names, "${prefix}_$name";
if ( $o->get('preserve-triggers') ) {
push @drop_trigger_sqls, $orig_triggers{$name};
}
push @drop_trigger_sqls,
"DROP TRIGGER IF EXISTS "
. $q->quote($orig_tbl->{db}, "${prefix}_$name") . ";";