Pass --where to get_range_statistics().

bin/pt-table-checksum

@@ -5560,6 +5560,7 @@ sub save_tbl_to_checksum {
                tbl        => $tbl,
                chunk_col  => $chunk_col,
                tbl_struct => $struct,
+               where      => $final_o->get('where'),
             );
             if ( !grep { !defined $params{$_} } qw(min max rows_in_range) ) {
                @chunks = $ch->calculate_chunks(

t/lib/TableChunker.t

@@ -27,7 +27,7 @@ if ( !$dbh ) {
    plan skip_all => 'Cannot connect to sandbox master';
 }
 else {
-   plan tests => 86;
+   plan tests => 88;
 }
 
 $sb->create_dbs($dbh, ['test']);
@@ -1231,6 +1231,30 @@ SKIP: {
    );
 };
 
+# ############################################################################
+# Bug 821673: pt-table-checksum doesn't included --where in min max queries
+# ############################################################################
+$sb->load_file('master', "t/pt-table-checksum/samples/where01.sql");
+$t = $p->parse( $du->get_create_table($dbh, $q, 'test', 'checksum_test') );
+%params = $c->get_range_statistics(
+   dbh        => $dbh,
+   db         => 'test',
+   tbl        => 'checksum_test',
+   chunk_col  => 'id',
+   tbl_struct => $t,
+   where      => "date = '2011-03-03'",
+);
+is(
+   $params{min},
+   11,
+   'MIN range stats with --where (bug 821673)'
+);
+is(
+   $params{max},
+   15,
+   'MAX range stats with --where (bug 821673)'
+);
+
 # #############################################################################
 # Done.
 # #############################################################################

t/pt-table-checksum/basics.t

@@ -24,7 +24,7 @@ if ( !$master_dbh ) {
    plan skip_all => 'Cannot connect to sandbox master';
 }
 else {
-   plan tests => 12;
+   plan tests => 13;
 }
 
 my ($output, $output2);
@@ -120,6 +120,23 @@ ok(
    "--sleep doesn't sleep unless table is chunked"
 );
 
+
+# ############################################################################
+# Bug 821673: pt-table-checksum doesn't included --where in min max queries
+# ############################################################################
+$sb->load_file('master', "t/pt-table-checksum/samples/where01.sql");
+
+ok(
+   no_diff(
+      sub { pt_table_checksum::main(@args, 
+         qw(--no-zero-chunk --chunk-size 5), '--where', "date = '2011-03-03'");
+      },
+      "t/pt-table-checksum/samples/where01.out",
+      trf => "awk '{print \$1 \" \" \$2 \" \" \$3}'",
+   ),
+   "--where affects range stats (bug 821673)"
+);
+
 # #############################################################################
 # Done.
 # #############################################################################

t/pt-table-checksum/samples/where01.out

@@ -0,0 +1,3 @@
+DATABASE TABLE CHUNK
+test checksum_test 0
+test checksum_test 1

t/pt-table-checksum/samples/where01.sql

@@ -0,0 +1,26 @@
+drop database if exists test;
+create database test;
+use test;
+
+CREATE TABLE `checksum_test` (
+  `id` int(11) NOT NULL DEFAULT '0',
+  `date` date DEFAULT NULL,
+  PRIMARY KEY (`id`)
+) ENGINE=InnoDB;
+
+INSERT INTO `checksum_test` VALUES 
+      (1, '2011-03-01'), 
+      (2, '2011-03-01'), 
+      (3, '2011-03-01'), 
+      (4, '2011-03-01'), 
+      (5, '2011-03-01'), 
+      (6, '2011-03-02'), 
+      (7, '2011-03-02'), 
+      (8, '2011-03-02'), 
+      (9, '2011-03-02'), 
+      (10, '2011-03-02'), 
+      (11, '2011-03-03'), 
+      (12, '2011-03-03'), 
+      (13, '2011-03-03'), 
+      (14, '2011-03-03'), 
+      (15, '2011-03-03');