#!/usr/bin/perl

use strict;
use warnings;

use Test::More;
use Test::Exception;
use Test::SQL::Translator qw(maybe_plan);
use SQL::Translator::Schema::Constants;
use Data::Dumper;
use FindBin qw/$Bin/;

# Testing 1,2,3,4...
#=============================================================================

BEGIN {
  maybe_plan(undef, 'SQL::Translator::Producer::PostgreSQL', 'Test::Differences',);
}
use Test::Differences;
use SQL::Translator;

my $PRODUCER = \&SQL::Translator::Producer::PostgreSQL::create_field;

{
  my $table = SQL::Translator::Schema::Table->new(
    name     => 'foo.bar',
    comments => [ "multi\nline", 'single line' ]
  );
  my $field = SQL::Translator::Schema::Field->new(
    name              => 'baz',
    comments          => [ "multi\nline", 'single line' ],
    table             => $table,
    data_type         => 'VARCHAR',
    size              => 10,
    default_value     => 'quux',
    is_auto_increment => 0,
    is_nullable       => 0,
    is_foreign_key    => 0,
    is_unique         => 0
  );
  $table->add_field($field);
  my ($create, $fks)
      = SQL::Translator::Producer::PostgreSQL::create_table($table,
        { quote_table_names => q{"}, attach_comments => 1 });
  is($table->name, 'foo.bar');

  my $expected = <<EOESQL;
--
-- Table: foo.bar
--
CREATE TABLE "foo"."bar" (
  "baz" character varying(10) DEFAULT 'quux' NOT NULL
);
COMMENT on TABLE "foo"."bar" IS \$comment\$multi
line
single line\$comment\$;
COMMENT on COLUMN "foo"."bar"."baz" IS \$comment\$multi
line
single line\$comment\$
EOESQL

  $expected =~ s/\n\z//;
  is($create, $expected);
}

my $table = SQL::Translator::Schema::Table->new(name => 'mytable');

my $field1 = SQL::Translator::Schema::Field->new(
  name              => 'myfield',
  table             => $table,
  data_type         => 'VARCHAR',
  size              => 10,
  default_value     => undef,
  is_auto_increment => 0,
  is_nullable       => 1,
  is_foreign_key    => 0,
  is_unique         => 0
);

my $field1_sql = SQL::Translator::Producer::PostgreSQL::create_field($field1);

is($field1_sql, 'myfield character varying(10)', 'Create field works');

my $field_array = SQL::Translator::Schema::Field->new(
  name              => 'myfield',
  table             => $table,
  data_type         => 'character varying[]',
  size              => 10,
  default_value     => undef,
  is_auto_increment => 0,
  is_nullable       => 1,
  is_foreign_key    => 0,
  is_unique         => 0
);

my $field_array_sql = SQL::Translator::Producer::PostgreSQL::create_field($field_array);

is($field_array_sql, 'myfield character varying(10)[]', 'Create field works');

my $field2 = SQL::Translator::Schema::Field->new(
  name              => 'myfield',
  table             => $table,
  data_type         => 'VARCHAR',
  size              => 25,
  default_value     => undef,
  is_auto_increment => 0,
  is_nullable       => 0,
  is_foreign_key    => 0,
  is_unique         => 0
);

my $pk_constraint = SQL::Translator::Schema::Constraint->new(
  table  => $table,
  name   => 'foo',
  fields => [qw(myfield)],
  type   => 'PRIMARY_KEY',
);

my ($pk_constraint_def_ref, $pk_constraint_fk_ref)
    = SQL::Translator::Producer::PostgreSQL::create_constraint($pk_constraint);
ok(@{$pk_constraint_def_ref} == 1 && @{$pk_constraint_fk_ref} == 0, 'precheck of create_Primary Key constraint');
is($pk_constraint_def_ref->[0], 'CONSTRAINT foo PRIMARY KEY (myfield)', 'Create Primary Key Constraint works');

my $alter_pk_constraint = SQL::Translator::Producer::PostgreSQL::alter_drop_constraint($pk_constraint);
is($alter_pk_constraint, 'ALTER TABLE mytable DROP CONSTRAINT foo', 'Alter drop Primary Key constraint works');

subtest 'Dotted tables (schema)' => sub {
  my $dotted_table         = SQL::Translator::Schema::Table->new(name => 'dotted.mytable');
  my $dotted_pk_constraint = SQL::Translator::Schema::Constraint->new(
    table  => $dotted_table,
    fields => [qw(myfield)],
    type   => 'PRIMARY_KEY',
  );
  my $alter_dotted_pk = SQL::Translator::Producer::PostgreSQL::alter_drop_constraint($dotted_pk_constraint);
  is(
    $alter_dotted_pk,
    'ALTER TABLE dotted.mytable DROP CONSTRAINT mytable_pkey',
    'generate correct PK name for dotted tables'
  );
};

my $table2 = SQL::Translator::Schema::Table->new(name => 'mytable2');

my $field1_2 = SQL::Translator::Schema::Field->new(
  name              => 'myfield_2',
  table             => $table,
  data_type         => 'VARCHAR',
  size              => 10,
  default_value     => undef,
  is_auto_increment => 0,
  is_nullable       => 1,
  is_foreign_key    => 0,
  is_unique         => 0
);

# check named, and unnamed foreign keys
for my $name ('foo', undef) {
  my $fk_constraint = SQL::Translator::Schema::Constraint->new(
    table            => $table,
    name             => $name,
    fields           => [qw(myfield)],
    type             => 'FOREIGN_KEY',
    reference_table  => $table2,
    reference_fields => [qw(myfield_2)],
  );
  my $fk_constraint_2 = SQL::Translator::Schema::Constraint->new(
    table            => $table,
    name             => $name,
    fields           => [qw(myfield)],
    type             => 'FOREIGN_KEY',
    reference_table  => $table2,
    reference_fields => [qw(myfield_2)],
  );

  my ($fk_constraint_def_ref, $fk_constraint_fk_ref)
      = SQL::Translator::Producer::PostgreSQL::create_constraint($fk_constraint);

  ok(@{$fk_constraint_def_ref} == 0 && @{$fk_constraint_fk_ref} == 1, 'precheck of create_Foreign Key constraint');

  if ($name) {
    is(
      $fk_constraint_fk_ref->[0],
      "ALTER TABLE mytable ADD CONSTRAINT $name FOREIGN KEY (myfield)
  REFERENCES mytable2 (myfield_2) DEFERRABLE",
      'Create Foreign Key Constraint works'
    );

    # ToDo: may we should check if the constraint name was valid, or if next
    #       unused_name created has choosen a different one
    my $alter_fk_constraint = SQL::Translator::Producer::PostgreSQL::alter_drop_constraint($fk_constraint);
    is($alter_fk_constraint, "ALTER TABLE mytable DROP CONSTRAINT $name", 'Alter drop Foreign Key constraint works');
  } else {
    is(
      $fk_constraint_fk_ref->[0],
      'ALTER TABLE mytable ADD FOREIGN KEY (myfield)
  REFERENCES mytable2 (myfield_2) DEFERRABLE',
      'Create un-named Foreign Key Constraint works'
    );

    my $alter_fk_constraint = SQL::Translator::Producer::PostgreSQL::alter_drop_constraint($fk_constraint);
    is(
      $alter_fk_constraint,
      'ALTER TABLE mytable DROP CONSTRAINT mytable_myfield_fkey',
      'Alter drop un-named Foreign Key constraint works'
    );
  }
}

# check named, and unnamed primary keys
for my $name ('foo', undef) {
  my $pk_constraint = SQL::Translator::Schema::Constraint->new(
    table  => $table,
    name   => $name,
    fields => [qw(myfield)],
    type   => 'PRIMARY_KEY',
  );
  my $pk_constraint_2 = SQL::Translator::Schema::Constraint->new(
    table  => $table,
    name   => $name,
    fields => [qw(myfield)],
    type   => 'PRIMARY_KEY',
  );

  my ($pk_constraint_def_ref, $pk_constraint_pk_ref)
      = SQL::Translator::Producer::PostgreSQL::create_constraint($pk_constraint);

  if ($name) {
    is($pk_constraint_def_ref->[0], "CONSTRAINT $name PRIMARY KEY (myfield)", 'Create Primary Key Constraint works');

    # ToDo: may we should check if the constraint name was valid, or if next
    #       unused_name created has choosen a different one
    my $alter_pk_constraint = SQL::Translator::Producer::PostgreSQL::alter_drop_constraint($pk_constraint);
    is($alter_pk_constraint, "ALTER TABLE mytable DROP CONSTRAINT $name", 'Alter drop Primary Key constraint works');
  } else {
    is($pk_constraint_def_ref->[0], 'PRIMARY KEY (myfield)', 'Create un-named Primary Key Constraint works');

    my $alter_pk_constraint = SQL::Translator::Producer::PostgreSQL::alter_drop_constraint($pk_constraint);
    is(
      $alter_pk_constraint,
      'ALTER TABLE mytable DROP CONSTRAINT mytable_pkey',
      'Alter drop un-named Foreign Key constraint works'
    );
  }
}

subtest 'exclude constraints' => sub {
  my $exclude_constraint = SQL::Translator::Schema::Constraint->new(
    table      => $table,
    name       => 'game',
    expression => 'dates WITH &&, char with =',
    options    => {
      using => 'gist',
      where => 'fun IS TRUE',
    },
    type => 'EXCLUDE',
  );
  my ($def, undef) = SQL::Translator::Producer::PostgreSQL::create_constraint($exclude_constraint);
  is $def->[0],
      'CONSTRAINT game EXCLUDE USING gist ( dates WITH &&, char with = ) WHERE ( fun IS TRUE )',
      'exclude constraint';

};

my $alter_field = SQL::Translator::Producer::PostgreSQL::alter_field($field1, $field2);
is(
  $alter_field, qq[ALTER TABLE mytable ALTER COLUMN myfield SET NOT NULL;
ALTER TABLE mytable ALTER COLUMN myfield TYPE character varying(25)],
  'Alter field works'
);

my $field1_complex = SQL::Translator::Schema::Field->new(
  name              => 'my_complex_field',
  table             => $table,
  data_type         => 'VARCHAR',
  size              => 10,
  default_value     => undef,
  is_auto_increment => 0,
  is_nullable       => 1,
  is_foreign_key    => 0,
  is_unique         => 0
);

my $field2_complex = SQL::Translator::Schema::Field->new(
  name              => 'my_altered_field',
  table             => $table,
  data_type         => 'VARCHAR',
  size              => 60,
  default_value     => 'whatever',
  is_auto_increment => 0,
  is_nullable       => 1,
  is_foreign_key    => 0,
  is_unique         => 0
);

my $alter_field_complex = SQL::Translator::Producer::PostgreSQL::alter_field($field1_complex, $field2_complex);
is(
  $alter_field_complex,
  q{ALTER TABLE mytable RENAME COLUMN my_complex_field TO my_altered_field;
ALTER TABLE mytable ALTER COLUMN my_altered_field TYPE character varying(60);
ALTER TABLE mytable ALTER COLUMN my_altered_field SET DEFAULT 'whatever'},
  'Complex Alter field works'
);

$field1->name('field3');
my $add_field = SQL::Translator::Producer::PostgreSQL::add_field($field1);

is($add_field, 'ALTER TABLE mytable ADD COLUMN field3 character varying(10)', 'Add field works');

my $drop_field = SQL::Translator::Producer::PostgreSQL::drop_field($field2);
is($drop_field, 'ALTER TABLE mytable DROP COLUMN myfield', 'Drop field works');

my $field_serial = SQL::Translator::Schema::Field->new(
  name              => 'serial_field',
  table             => $table,
  data_type         => 'INT',
  is_auto_increment => 1,
  is_nullable       => 0
);

my $field_serial_sql = SQL::Translator::Producer::PostgreSQL::create_field($field_serial);

is($field_serial_sql, 'serial_field serial NOT NULL', 'Create serial field works');

my $field_bigserial = SQL::Translator::Schema::Field->new(
  name              => 'bigserial_field',
  table             => $table,
  data_type         => 'BIGINT',
  is_auto_increment => 1,
  is_nullable       => 0
);

my $field_bigserial_sql = SQL::Translator::Producer::PostgreSQL::create_field($field_bigserial);

is($field_bigserial_sql, 'bigserial_field bigserial NOT NULL', 'Create bigserial field works (from bigint type)');

$field_bigserial = SQL::Translator::Schema::Field->new(
  name              => 'bigserial_field',
  table             => $table,
  data_type         => 'INT',
  is_auto_increment => 1,
  is_nullable       => 0,
  size              => 12
);

$field_bigserial_sql = SQL::Translator::Producer::PostgreSQL::create_field($field_bigserial);

is($field_bigserial_sql, 'bigserial_field bigserial NOT NULL', 'Create bigserial field works (based on size)');

my $field3 = SQL::Translator::Schema::Field->new(
  name              => 'time_field',
  table             => $table,
  data_type         => 'TIME',
  default_value     => undef,
  is_auto_increment => 0,
  is_nullable       => 0,
  is_foreign_key    => 0,
  is_unique         => 0
);

my $field3_sql = SQL::Translator::Producer::PostgreSQL::create_field($field3);

is($field3_sql, 'time_field time NOT NULL', 'Create time field works');

my $field3_datetime_with_TZ = SQL::Translator::Schema::Field->new(
  name      => 'datetime_with_TZ',
  table     => $table,
  data_type => 'timestamp with time zone',
  size      => 7,
);

my $field3_datetime_with_TZ_sql = SQL::Translator::Producer::PostgreSQL::create_field($field3_datetime_with_TZ);

is(
  $field3_datetime_with_TZ_sql,
  'datetime_with_TZ timestamp(6) with time zone',
  'Create time field with time zone and size, works'
);

my $field3_time_without_TZ = SQL::Translator::Schema::Field->new(
  name      => 'time_without_TZ',
  table     => $table,
  data_type => 'time without time zone',
  size      => 2,
);

my $field3_time_without_TZ_sql = SQL::Translator::Producer::PostgreSQL::create_field($field3_time_without_TZ);

is(
  $field3_time_without_TZ_sql,
  'time_without_TZ time(2) without time zone',
  'Create time field without time zone but with size, works'
);

my $field_num = SQL::Translator::Schema::Field->new(
  name      => 'num',
  table     => $table,
  data_type => 'numeric',
  size      => [ 10, 2 ],
);
my $fieldnum_sql = SQL::Translator::Producer::PostgreSQL::create_field($field_num);

is($fieldnum_sql, 'num numeric(10,2)', 'Create numeric field works');

my $field4 = SQL::Translator::Schema::Field->new(
  name              => 'bytea_field',
  table             => $table,
  data_type         => 'bytea',
  size              => '16777215',
  default_value     => undef,
  is_auto_increment => 0,
  is_nullable       => 0,
  is_foreign_key    => 0,
  is_unique         => 0
);

my $field4_sql = SQL::Translator::Producer::PostgreSQL::create_field($field4);

is($field4_sql, 'bytea_field bytea NOT NULL', 'Create bytea field works');

my $field5 = SQL::Translator::Schema::Field->new(
  name              => 'enum_field',
  table             => $table,
  data_type         => 'enum',
  extra             => { list => [ 'Foo', 'Bar', 'Ba\'z' ] },
  is_auto_increment => 0,
  is_nullable       => 0,
  is_foreign_key    => 0,
  is_unique         => 0
);

my $field5_types = {};
my $field5_sql   = SQL::Translator::Producer::PostgreSQL::create_field(
  $field5,
  {
    postgres_version => 8.3,
    type_defs        => $field5_types,
  }
);

is($field5_sql, 'enum_field mytable_enum_field_type NOT NULL', 'Create real enum field works');
is_deeply(
  $field5_types,
  {
    mytable_enum_field_type => "DROP TYPE IF EXISTS mytable_enum_field_type CASCADE;\n"
        . "CREATE TYPE mytable_enum_field_type AS ENUM ('Foo', 'Bar', 'Ba''z')"
  },
  'Create real enum type works'
);

my $field5a = SQL::Translator::Schema::Field->new(
  name      => 'enum_field',
  table     => $table,
  data_type => 'enum',
  extra     => {
    custom_type_name => 'mytable_enum_field_type',
    list             => [ 'Foo', 'Bar', 'Ba\'z' ]
  },
  is_auto_increment => 0,
  is_nullable       => 0,
  is_foreign_key    => 0,
  is_unique         => 0
);
my $field5b = SQL::Translator::Schema::Field->new(
  name      => 'enum_field',
  table     => $table,
  data_type => 'enum',
  extra     => {
    custom_type_name => 'mytable_enum_field_type',
    list             => [ 'Foo', 'Bar', 'Ba\'z', 'Other' ]
  },
  is_auto_increment => 0,
  is_nullable       => 0,
  is_foreign_key    => 0,
  is_unique         => 0
);

$alter_field = SQL::Translator::Producer::PostgreSQL::alter_field($field5a, $field5b, { postgres_version => 9.001 });
is($alter_field, q(ALTER TYPE mytable_enum_field_type ADD VALUE IF NOT EXISTS 'Other'), 'Add value to enum');

my $field6 = SQL::Translator::Schema::Field->new(
  name              => 'character',
  table             => $table,
  data_type         => 'character',
  size              => '123',
  default_value     => 'foobar',
  is_auto_increment => 0,
  is_nullable       => 0,
  is_foreign_key    => 0,
  is_unique         => 0
);

my $field7 = SQL::Translator::Schema::Field->new(
  name              => 'character',
  table             => $table,
  data_type         => 'character',
  size              => '123',
  default_value     => undef,
  is_auto_increment => 0,
  is_nullable       => 0,
  is_foreign_key    => 0,
  is_unique         => 0
);

$alter_field = SQL::Translator::Producer::PostgreSQL::alter_field($field6, $field7);

is($alter_field, q(ALTER TABLE mytable ALTER COLUMN character DROP DEFAULT), 'DROP DEFAULT');

$field7->default_value(q(foo'bar'));

$alter_field = SQL::Translator::Producer::PostgreSQL::alter_field($field6, $field7);

is($alter_field, q(ALTER TABLE mytable ALTER COLUMN character SET DEFAULT 'foo''bar'''), 'DEFAULT with escaping');

$field7->default_value(\q(foobar));

$alter_field = SQL::Translator::Producer::PostgreSQL::alter_field($field6, $field7);

is($alter_field, q(ALTER TABLE mytable ALTER COLUMN character SET DEFAULT foobar), 'DEFAULT unescaped if scalarref');

$field7->is_nullable(1);
$field7->default_value(q(foobar));

$alter_field = SQL::Translator::Producer::PostgreSQL::alter_field($field6, $field7);

is($alter_field, q(ALTER TABLE mytable ALTER COLUMN character DROP NOT NULL), 'DROP NOT NULL');

my $field8 = SQL::Translator::Schema::Field->new(
  name              => 'ts_field',
  table             => $table,
  data_type         => 'timestamp with time zone',
  size              => 6,
  is_auto_increment => 0,
  is_nullable       => 0,
  is_foreign_key    => 0,
  is_unique         => 0
);

my $field8_sql = SQL::Translator::Producer::PostgreSQL::create_field($field8, { postgres_version => 8.3 });

is($field8_sql, 'ts_field timestamp(6) with time zone NOT NULL', 'timestamp with precision');

my $field9 = SQL::Translator::Schema::Field->new(
  name              => 'time_field',
  table             => $table,
  data_type         => 'time with time zone',
  size              => 6,
  is_auto_increment => 0,
  is_nullable       => 0,
  is_foreign_key    => 0,
  is_unique         => 0
);

my $field9_sql = SQL::Translator::Producer::PostgreSQL::create_field($field9, { postgres_version => 8.3 });

is($field9_sql, 'time_field time(6) with time zone NOT NULL', 'time with precision');

my $field10 = SQL::Translator::Schema::Field->new(
  name              => 'interval_field',
  table             => $table,
  data_type         => 'interval',
  size              => 6,
  is_auto_increment => 0,
  is_nullable       => 0,
  is_foreign_key    => 0,
  is_unique         => 0
);

my $field10_sql = SQL::Translator::Producer::PostgreSQL::create_field($field10, { postgres_version => 8.3 });

is($field10_sql, 'interval_field interval(6) NOT NULL', 'time with precision');

my $field11 = SQL::Translator::Schema::Field->new(
  name              => 'time_field',
  table             => $table,
  data_type         => 'time without time zone',
  size              => 6,
  is_auto_increment => 0,
  is_nullable       => 0,
  is_foreign_key    => 0,
  is_unique         => 0
);

my $field11_sql = SQL::Translator::Producer::PostgreSQL::create_field($field11, { postgres_version => 8.3 });

is($field11_sql, 'time_field time(6) without time zone NOT NULL', 'time with precision');

my $field12 = SQL::Translator::Schema::Field->new(
  name              => 'time_field',
  table             => $table,
  data_type         => 'timestamp',
  is_auto_increment => 0,
  is_nullable       => 0,
  is_foreign_key    => 0,
  is_unique         => 0
);

my $field12_sql = SQL::Translator::Producer::PostgreSQL::create_field($field12, { postgres_version => 8.3 });

is($field12_sql, 'time_field timestamp NOT NULL', 'time with precision');

my $field13 = SQL::Translator::Schema::Field->new(
  name      => 'enum_field_with_type_name',
  table     => $table,
  data_type => 'enum',
  extra     => {
    list             => [ 'Foo', 'Bar', 'Ba\'z' ],
    custom_type_name => 'real_enum_type'
  },
  is_auto_increment => 0,
  is_nullable       => 0,
  is_foreign_key    => 0,
  is_unique         => 0
);

my $field13_types = {};
my $field13_sql   = SQL::Translator::Producer::PostgreSQL::create_field(
  $field13,
  {
    postgres_version => 8.3,
    type_defs        => $field13_types,
  }
);

is($field13_sql, 'enum_field_with_type_name real_enum_type NOT NULL', 'Create real enum field works');
is_deeply(
  $field13_types,
  {
    real_enum_type => "DROP TYPE IF EXISTS real_enum_type CASCADE;\n"
        . "CREATE TYPE real_enum_type AS ENUM ('Foo', 'Bar', 'Ba''z')"
  },
  'Create real enum type works'
);

{
  # let's test default values! -- rjbs, 2008-09-30
  my %field = (
    table             => $table,
    data_type         => 'VARCHAR',
    size              => 10,
    is_auto_increment => 0,
    is_nullable       => 1,
    is_foreign_key    => 0,
    is_unique         => 0,
  );

  {
    my $simple_default = SQL::Translator::Schema::Field->new(
      %field,
      name          => 'str_default',
      default_value => 'foo',
    );

    is($PRODUCER->($simple_default), q{str_default character varying(10) DEFAULT 'foo'}, 'default str',);
  }

  {
    my $null_default = SQL::Translator::Schema::Field->new(
      %field,
      name          => 'null_default',
      default_value => \'NULL',
    );

    is($PRODUCER->($null_default), q{null_default character varying(10) DEFAULT NULL}, 'default null',);
  }

  {
    my $null_default = SQL::Translator::Schema::Field->new(
      %field,
      name          => 'null_default_2',
      default_value => 'NULL',             # XXX: this should go away
    );

    is(
      $PRODUCER->($null_default),
      q{null_default_2 character varying(10) DEFAULT NULL},
      'default null from special cased string',
    );
  }

  {
    my $func_default = SQL::Translator::Schema::Field->new(
      %field,
      name          => 'func_default',
      default_value => \'func(funky)',
    );

    is(
      $PRODUCER->($func_default),
      q{func_default character varying(10) DEFAULT func(funky)},
      'unquoted default from scalar ref',
    );
  }
}

my $view1 = SQL::Translator::Schema::View->new(
  name   => 'view_foo',
  fields => [qw/id name/],
  sql    => 'SELECT id, name FROM thing',
);
my $create_opts = { add_replace_view => 1, no_comments => 1 };
my $view1_sql1  = SQL::Translator::Producer::PostgreSQL::create_view($view1, $create_opts);

my $view_sql_replace = "CREATE VIEW view_foo ( id, name ) AS
    SELECT id, name FROM thing
";
is($view1_sql1, $view_sql_replace, 'correct "CREATE OR REPLACE VIEW" SQL');

my $view2 = SQL::Translator::Schema::View->new(
  name  => 'view_foo2',
  sql   => 'SELECT id, name FROM thing',
  extra => {
    'temporary'    => '1',
    'check_option' => 'cascaded',
  },
);
my $create2_opts = { add_replace_view => 1, no_comments => 1 };
my $view2_sql1   = SQL::Translator::Producer::PostgreSQL::create_view($view2, $create2_opts);

my $view2_sql_replace = "CREATE TEMPORARY VIEW view_foo2 AS
    SELECT id, name FROM thing
 WITH CASCADED CHECK OPTION";
is($view2_sql1, $view2_sql_replace, 'correct "CREATE OR REPLACE VIEW" SQL 2');

{
  my $table = SQL::Translator::Schema::Table->new(
    name   => 'foobar',
    fields => [qw( foo  bar )]
  );
  my $quote = { quote_table_names => '"' };

  {
    my $index = $table->add_index(name => 'myindex', fields => ['foo']);
    my ($def) = SQL::Translator::Producer::PostgreSQL::create_index($index);
    is($def, "CREATE INDEX myindex on foobar (foo)", 'index created');
    ($def) = SQL::Translator::Producer::PostgreSQL::create_index($index, $quote);
    is($def, 'CREATE INDEX "myindex" on "foobar" ("foo")', 'index created w/ quotes');
  }

  {
    my $index = $table->add_index(
      name   => 'myindex',
      fields => [ { name => 'foo', prefix_length => 20 } ]
    );
    my ($def) = SQL::Translator::Producer::PostgreSQL::create_index($index);
    is($def, "CREATE INDEX myindex on foobar (foo)", 'index created');
    ($def) = SQL::Translator::Producer::PostgreSQL::create_index($index, $quote);
    is($def, 'CREATE INDEX "myindex" on "foobar" ("foo")', 'index created w/ quotes');
  }

  {
    my $index = $table->add_index(name => 'myindex', fields => ['lower(foo)']);
    my ($def) = SQL::Translator::Producer::PostgreSQL::create_index($index);
    is($def, "CREATE INDEX myindex on foobar (lower(foo))", 'index created');
    ($def) = SQL::Translator::Producer::PostgreSQL::create_index($index, $quote);
    is($def, 'CREATE INDEX "myindex" on "foobar" (lower(foo))', 'index created w/ quotes');
  }

  {
    my $index = $table->add_index(
      name   => 'myindex',
      fields => [ 'bar', 'lower(foo)' ]
    );
    my ($def) = SQL::Translator::Producer::PostgreSQL::create_index($index);
    is($def, "CREATE INDEX myindex on foobar (bar, lower(foo))", 'index created');
    ($def) = SQL::Translator::Producer::PostgreSQL::create_index($index, $quote);
    is($def, 'CREATE INDEX "myindex" on "foobar" ("bar", lower(foo))', 'index created w/ quotes');
  }

  {
    my $index = $table->add_index(
      name    => 'covering',
      fields  => ['bar'],
      options => { include => [ 'lower(foo)', 'baz' ] }
    );
    my ($def) = SQL::Translator::Producer::PostgreSQL::create_index($index);
    is($def, "CREATE INDEX covering on foobar (bar)", 'skip if postgres is too old');
    ($def) = SQL::Translator::Producer::PostgreSQL::create_index($index, { postgres_version => 11 });
    is($def, "CREATE INDEX covering on foobar (bar) INCLUDE (lower(foo), baz)", 'index created');
  }

  {
    my $constr = $table->add_constraint(
      name   => 'constr',
      type   => UNIQUE,
      fields => ['foo']
    );
    my ($def) = SQL::Translator::Producer::PostgreSQL::create_constraint($constr);
    is($def->[0], 'CONSTRAINT constr UNIQUE (foo)', 'constraint created');
    ($def) = SQL::Translator::Producer::PostgreSQL::create_constraint($constr, $quote);
    is($def->[0], 'CONSTRAINT "constr" UNIQUE ("foo")', 'constraint created w/ quotes');
  }

  {
    my $constr = $table->add_constraint(
      name   => 'constr',
      type   => UNIQUE,
      fields => ['lower(foo)']
    );
    my ($def) = SQL::Translator::Producer::PostgreSQL::create_constraint($constr);
    is($def->[0], 'CONSTRAINT constr UNIQUE (lower(foo))', 'constraint created');
    ($def) = SQL::Translator::Producer::PostgreSQL::create_constraint($constr, $quote);
    is($def->[0], 'CONSTRAINT "constr" UNIQUE (lower(foo))', 'constraint created w/ quotes');
  }

  {
    my $constr = $table->add_constraint(
      name   => 'constr',
      type   => UNIQUE,
      fields => [ 'bar', 'lower(foo)' ]
    );
    my ($def) = SQL::Translator::Producer::PostgreSQL::create_constraint($constr);
    is($def->[0], 'CONSTRAINT constr UNIQUE (bar, lower(foo))', 'constraint created');
    ($def) = SQL::Translator::Producer::PostgreSQL::create_constraint($constr, $quote);
    is($def->[0], 'CONSTRAINT "constr" UNIQUE ("bar", lower(foo))', 'constraint created w/ quotes');
  }

  {
    my $index = $table->add_index(
      name    => 'myindex',
      options => [ { using => 'hash' }, { where => "upper(foo) = 'bar' AND bar = 'foo'" } ],
      fields  => [ 'bar',               'lower(foo)' ]
    );
    my ($def) = SQL::Translator::Producer::PostgreSQL::create_index($index);
    is(
      $def,
      "CREATE INDEX myindex on foobar USING hash (bar, lower(foo)) WHERE upper(foo) = 'bar' AND bar = 'foo'",
      'index using & where created'
    );
    ($def) = SQL::Translator::Producer::PostgreSQL::create_index($index, $quote);
    is(
      $def,
      'CREATE INDEX "myindex" on "foobar" USING hash ("bar", lower(foo)) WHERE upper(foo) = \'bar\' AND bar = \'foo\'',
      'index using & where created w/ quotes'
    );
  }
}

my $drop_view_opts1        = { add_drop_view => 1, no_comments => 1, postgres_version => 8.001 };
my $drop_view_8_1_produced = SQL::Translator::Producer::PostgreSQL::create_view($view1, $drop_view_opts1);

my $drop_view_8_1_expected = "DROP VIEW view_foo;
CREATE VIEW view_foo ( id, name ) AS
    SELECT id, name FROM thing
";

is($drop_view_8_1_produced, $drop_view_8_1_expected, "My DROP VIEW statement for 8.1 is correct");

my $drop_view_opts2        = { add_drop_view => 1, no_comments => 1, postgres_version => 9.001 };
my $drop_view_9_1_produced = SQL::Translator::Producer::PostgreSQL::create_view($view1, $drop_view_opts2);

my $drop_view_9_1_expected = "DROP VIEW IF EXISTS view_foo;
CREATE VIEW view_foo ( id, name ) AS
    SELECT id, name FROM thing
";

is($drop_view_9_1_produced, $drop_view_9_1_expected, "My DROP VIEW statement for 9.1 is correct");

my $mat_view = SQL::Translator::Schema::View->new(
  name   => 'view_foo',
  fields => [qw/id name/],
  sql    => 'SELECT id, name FROM thing',
  extra  => {
    materialized => 1
  }
);

my $mat_view_sql = SQL::Translator::Producer::PostgreSQL::create_view($mat_view, { no_comments => 1 });

my $mat_view_sql_expected = "CREATE MATERIALIZED VIEW view_foo ( id, name ) AS
    SELECT id, name FROM thing
";

is($mat_view_sql, $mat_view_sql_expected, 'correct "MATERIALIZED VIEW" SQL');
done_testing;