/[pgdiff]/pgdiff
This is repository of my old source code which isn't updated any more. Go to git.rot13.org for current projects!
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revision 1.3 by dpavlin, Tue Aug 12 12:00:07 2003 UTC revision 1.4 by dpavlin, Tue Aug 12 18:45:04 2003 UTC
# Line 11  use strict; Line 11  use strict;
11  use Getopt::Long;  use Getopt::Long;
12  use DBI;  use DBI;
13  use Data::Dumper;  use Data::Dumper;
14    use Pg::Scheme;
15    
16  $| = 1;  $| = 1;
17    
# Line 105  sub debug { Line 106  sub debug {
106    
107  $verbose = 1 if ($debug);  $verbose = 1 if ($debug);
108    
109    # init object for scheme in master database
110    my $mscheme = new Pg::Scheme( 'dbh' => $mdbh ) || die "can't query schema";
111    
112  # which tables to compare?  # which tables to compare?
113    
114  my @tables;  my @tables = $mscheme->list_tables($tables);
 if ($tables) {  
         @tables = split(/,/,$tables);  
 } else {  
         # take all tables  
         #$sql="select tablename from pg_tables where tablename not like 'pg_%' and tablename not like '_rserv_%'";  
         # show tables (based on psql \dt)  
         $sql = "  
         SELECT c.relname as table  
         FROM pg_catalog.pg_class c  
                 LEFT JOIN pg_catalog.pg_namespace n ON n.oid = c.relnamespace  
         WHERE c.relkind = 'r'  
                 AND n.nspname NOT IN ('pg_catalog', 'pg_toast')  
                 AND pg_catalog.pg_table_is_visible(c.oid)  
                 and c.relname not like '_rserv_%'  
         ";  
         foreach my $table (@tables) {  
                 $sql .= " and c.relname like '$table'";  
         }  
         my $sth = $mdbh->prepare($sql);  
         $sth->execute() || die;  
         while(my $row = $sth->fetchrow_hashref()) {  
                 push @tables,$row->{table};  
         }  
 }  
115    
116  debug "Comparing tables: ".join(", ",@tables)."\n";  debug "Comparing tables: ".join(", ",@tables)."\n";
117    
# Line 140  my $diff_total = 0; Line 120  my $diff_total = 0;
120    
121  foreach my $table (@tables) {  foreach my $table (@tables) {
122    
123          my ($sth);          my $sth;
   
         # find table oid  
         $sql = "  
         SELECT c.oid, n.nspname, c.relname  
         FROM pg_catalog.pg_class c  
         LEFT JOIN pg_catalog.pg_namespace n ON n.oid = c.relnamespace  
         WHERE pg_catalog.pg_table_is_visible(c.oid)  
         AND c.relname = '$table'  
         ORDER BY 2, 3  
         ";  
   
         $sth = $mdbh->prepare($sql);  
         $sth->execute() || die;  
         my $row = $sth->fetchrow_hashref();  
         if (! $row) {  
                 print STDERR "Can't find OID of table '$table'\n";  
                 exit 1;  
         }  
   
         my $oid = $row->{oid};  
124    
125          # diff schema          # diff schema
126    
# Line 170  foreach my $table (@tables) { Line 130  foreach my $table (@tables) {
130          my @cols_test;  # all colums to test (without skipped)          my @cols_test;  # all colums to test (without skipped)
131          my @cols;       # all colums (for insert)          my @cols;       # all colums (for insert)
132    
         my $sql="  
 SELECT a.attname,  
 pg_catalog.format_type(a.atttypid, a.atttypmod),  
 a.attnotnull, a.atthasdef, a.attnum  
 FROM pg_catalog.pg_attribute a  
 WHERE a.attrelid = $oid AND a.attnum > 0 AND NOT a.attisdropped  
 ORDER BY a.attnum  
 ";  
133    
134          $sth = $mdbh->prepare($sql);          foreach my $row ($mscheme->explain_table($table)) {
         $sth->execute() || die;  
         while(my $row = $sth->fetchrow_hashref()) {  
135                  # attname | format_type | attnotnull | atthasdef | attnum                  # attname | format_type | attnotnull | atthasdef | attnum
136    
137                  push @cols,$row->{attname};                  push @cols,$row->{attname};
# Line 201  ORDER BY a.attnum Line 151  ORDER BY a.attnum
151                          push @cols_null,$row->{attname};                          push @cols_null,$row->{attname};
152                  }                  }
153          }          }
         $sth->finish();  
154    
155          if ($debug) {          if ($debug) {
156                  print STDERR "DEBUG: table $table [$oid] not null: (",join(", ",@cols_notnull),")";                  print STDERR "DEBUG: table $table not null cols: (",join(", ",@cols_notnull),")";
157                  print STDERR " - null: (",join(", ",@cols_null),")" if (@cols_null);                  print STDERR " - null cols: (",join(", ",@cols_null),")" if (@cols_null);
158                  print STDERR " - skip: (",join(", ",@cols_skip),")" if (@cols_skip);                  print STDERR " - skip cols: (",join(", ",@cols_skip),")" if (@cols_skip);
159                  print STDERR "\n";                  print STDERR "\n";
160          }          }
161    
# Line 236  ORDER BY Line 185  ORDER BY
185          debug_sql($sql);          debug_sql($sql);
186          $sth = $mdbh->prepare($sql);          $sth = $mdbh->prepare($sql);
187          $sth->execute() || die;          $sth->execute() || die;
188          $row = $sth->fetchrow_hashref();          my $row = $sth->fetchrow_hashref();
189          if ($row) {          if ($row) {
190                  $sql="                  $sql="
191                  select a1.attname as attname from pg_attribute a1, pg_attribute a2 where a1.attrelid = ".$row->{indexrelid}." and a2.attrelid=".$row->{indrelid}." and a1.attname = a2.attname and a2.attnotnull";                  select a1.attname as attname from pg_attribute a1, pg_attribute a2 where a1.attrelid = ".$row->{indexrelid}." and a2.attrelid=".$row->{indrelid}." and a1.attname = a2.attname and a2.attnotnull";
# Line 450  ORDER BY Line 399  ORDER BY
399          $diff_total += $diff_row;          $diff_total += $diff_row;
400  }  }
401    
402  print STDERR "$diff_total differences in all tables\n" if ($verbose && $diff_total > 0);  if ($verbose) {
403            if ($diff_total == 0) {
404                    print STDERR "databases are same";
405            } elsif ($diff_total > 0) {
406                    print STDERR "$diff_total differences in all tables\n";
407            } else {
408                    die "this shouldn't happend. please report a bug!";
409            }
410    }
411    
412  $mdbh->disconnect();  $mdbh->disconnect();
413  $sdbh->disconnect();  $sdbh->disconnect();

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