11 |
use Getopt::Long; |
use Getopt::Long; |
12 |
use DBI; |
use DBI; |
13 |
use Data::Dumper; |
use Data::Dumper; |
14 |
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use Pg::Scheme; |
15 |
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16 |
$| = 1; |
$| = 1; |
17 |
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106 |
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107 |
$verbose = 1 if ($debug); |
$verbose = 1 if ($debug); |
108 |
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109 |
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# init object for scheme in master database |
110 |
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my $mscheme = new Pg::Scheme( 'dbh' => $mdbh, 'DEBUG' => 0 ) || die "can't query schema"; |
111 |
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112 |
# which tables to compare? |
# which tables to compare? |
113 |
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114 |
my @tables; |
my @tables = $mscheme->list_tables($tables); |
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if ($tables) { |
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@tables = split(/,/,$tables); |
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} else { |
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# take all tables |
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#$sql="select tablename from pg_tables where tablename not like 'pg_%' and tablename not like '_rserv_%'"; |
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# show tables (based on psql \dt) |
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$sql = " |
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SELECT c.relname as table |
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FROM pg_catalog.pg_class c |
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LEFT JOIN pg_catalog.pg_namespace n ON n.oid = c.relnamespace |
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WHERE c.relkind = 'r' |
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AND n.nspname NOT IN ('pg_catalog', 'pg_toast') |
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AND pg_catalog.pg_table_is_visible(c.oid) |
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and c.relname not like '_rserv_%' |
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"; |
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foreach my $table (@tables) { |
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$sql .= " and c.relname like '$table'"; |
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} |
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my $sth = $mdbh->prepare($sql); |
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$sth->execute() || die; |
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while(my $row = $sth->fetchrow_hashref()) { |
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push @tables,$row->{table}; |
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} |
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} |
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115 |
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116 |
debug "Comparing tables: ".join(", ",@tables)."\n"; |
debug "Comparing tables: ".join(", ",@tables)."\n"; |
117 |
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120 |
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121 |
foreach my $table (@tables) { |
foreach my $table (@tables) { |
122 |
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123 |
my ($sth); |
my $sth; |
124 |
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125 |
# find table oid |
# diff schema |
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$sql = " |
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SELECT c.oid, n.nspname, c.relname |
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FROM pg_catalog.pg_class c |
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LEFT JOIN pg_catalog.pg_namespace n ON n.oid = c.relnamespace |
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WHERE pg_catalog.pg_table_is_visible(c.oid) |
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AND c.relname = '$table' |
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ORDER BY 2, 3 |
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"; |
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$sth = $mdbh->prepare($sql); |
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$sth->execute() || die; |
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my $row = $sth->fetchrow_hashref(); |
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if (! $row) { |
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print STDERR "Can't find OID of table '$table'\n"; |
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exit 1; |
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} |
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126 |
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127 |
my $oid = $row->{oid}; |
# all colums (for insert) |
128 |
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my @cols = @{$mscheme->cols($table)}; |
129 |
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130 |
# diff schema |
# colums compared by a=b |
131 |
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my @cols_notnull = @{$mscheme->cols_notnull($table)}; |
132 |
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133 |
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# colums compared by a=b or a is null and b is null |
134 |
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my @cols_null = @{$mscheme->cols_null($table)}; |
135 |
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136 |
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# primary key columns |
137 |
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my @cols_pk = @{$mscheme->cols_pk($table)}; |
138 |
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139 |
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# columns to compare (not in primary key) |
140 |
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my @cols_cmp = @{$mscheme->cols_notpk($table)}; |
141 |
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my @cols_notnull;# colums compared by a=b |
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my @cols_null; # colums compared by a=b or a is null and b is null |
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142 |
my @cols_skip; # skipped columns |
my @cols_skip; # skipped columns |
143 |
my @cols_test; # all colums to test (without skipped) |
my @cols_test; # all colums to test (without skipped) |
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my @cols; # all colums (for insert) |
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my $sql=" |
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SELECT a.attname, |
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pg_catalog.format_type(a.atttypid, a.atttypmod), |
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a.attnotnull, a.atthasdef, a.attnum |
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FROM pg_catalog.pg_attribute a |
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WHERE a.attrelid = $oid AND a.attnum > 0 AND NOT a.attisdropped |
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ORDER BY a.attnum |
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"; |
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144 |
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145 |
$sth = $mdbh->prepare($sql); |
foreach my $row (@{$mscheme->pg_attribute($table)}) { |
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$sth->execute() || die; |
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while(my $row = $sth->fetchrow_hashref()) { |
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146 |
# attname | format_type | attnotnull | atthasdef | attnum |
# attname | format_type | attnotnull | atthasdef | attnum |
147 |
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push @cols,$row->{attname}; |
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148 |
# FIXME: do something with attributes which shouldn't be compared |
# FIXME: do something with attributes which shouldn't be compared |
149 |
# (date, time, datetime, timestamp) |
# (date, time, datetime, timestamp) |
150 |
if ($row->{format_type} =~ /(date)|(time)/i) { |
if ($row->{format_type} =~ /(date)|(time)/i) { |
151 |
push @cols_skip,$row->{attname}; |
push @cols_skip,$row->{attname}; |
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next; |
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} |
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push @cols_test,$row->{attname}; |
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if ($row->{attnotnull}) { |
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push @cols_notnull,$row->{attname}; |
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152 |
} else { |
} else { |
153 |
push @cols_null,$row->{attname}; |
push @cols_test,$row->{attname}; |
154 |
} |
} |
155 |
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156 |
} |
} |
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$sth->finish(); |
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157 |
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158 |
if ($debug) { |
if ($debug) { |
159 |
print STDERR "DEBUG: table $table [$oid] not null: (",join(", ",@cols_notnull),")"; |
print STDERR "DEBUG: table $table not null cols: (",join(", ",@cols_notnull),")"; |
160 |
print STDERR " - null: (",join(", ",@cols_null),")" if (@cols_null); |
print STDERR " - null cols: (",join(", ",@cols_null),")" if (@cols_null); |
161 |
print STDERR " - skip: (",join(", ",@cols_skip),")" if (@cols_skip); |
print STDERR " - skip cols: (",join(", ",@cols_skip),")" if (@cols_skip); |
162 |
print STDERR "\n"; |
print STDERR "\n"; |
163 |
} |
} |
164 |
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165 |
# diff data |
# diff data |
166 |
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my @cols_pk; # columns which are primary key |
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my %in_pk; |
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$sql=" |
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SELECT |
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i.indexrelid as indexrelid, i.indrelid as indrelid, |
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count(a.attname) as cols_in_pk |
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FROM |
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pg_catalog.pg_class c, |
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pg_catalog.pg_index i, |
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pg_catalog.pg_attribute a |
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WHERE |
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c.oid = i.indrelid |
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and i.indisunique |
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and c.relname = '$table' |
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and a.attrelid = i.indexrelid |
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GROUP BY |
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i.indexrelid, i.indrelid, c.relname, i.indisprimary, i.indisunique |
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ORDER BY |
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cols_in_pk ASC, i.indisprimary DESC, i.indisunique DESC, c.relname DESC |
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"; |
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debug_sql($sql); |
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$sth = $mdbh->prepare($sql); |
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$sth->execute() || die; |
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$row = $sth->fetchrow_hashref(); |
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if ($row) { |
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$sql=" |
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select a1.attname as attname from pg_attribute a1, pg_attribute a2 where a1.attrelid = ".$row->{indexrelid}." and a2.attrelid=".$row->{indrelid}." and a1.attname = a2.attname and a2.attnotnull"; |
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debug_sql($sql); |
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my $sth2 = $mdbh->prepare($sql); |
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$sth2->execute() || die; |
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@cols_pk = (); |
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while (my $row2 = $sth2->fetchrow_hashref()) { |
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push @cols_pk,$row2->{attname}; |
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$in_pk{$row2->{attname}}++; |
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} |
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} |
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167 |
if (! @cols_pk) { |
if (! @cols_pk) { |
168 |
print STDERR "can't find PK rows for table '$table' using all\n"; |
print STDERR "can't find PK rows for table '$table' using all\n"; |
169 |
@cols_pk = @cols; |
@cols_pk = @cols; |
170 |
} |
} |
171 |
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my @cols_cmp; # columns to compare |
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foreach my $col (@cols_test) { |
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push @cols_cmp,$col if (! $in_pk{$col}); |
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} |
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172 |
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173 |
if ($verbose) { |
if ($verbose) { |
174 |
print "table '$table' using for key: (",join(", ",@cols_pk),") to compare cols: (",join(", ",@cols_cmp),")\n"; |
print "table '$table' using for key: (",join(", ",@cols_pk),") to compare cols: (",join(", ",@cols_cmp),")\n"; |
266 |
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267 |
# insert into slave database |
# insert into slave database |
268 |
sub sql_insert { |
sub sql_insert { |
269 |
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my $dbh = shift @_ || die "need dbh"; |
270 |
my $table = shift @_ || die "need table as argument"; |
my $table = shift @_ || die "need table as argument"; |
271 |
my $row = shift @_ || die "need row data"; |
my $row = shift @_ || die "need row data"; |
272 |
my @cols = @_; |
my @cols = @_; |
274 |
my $sql = "insert into $table (".join(",",@cols).") values ("; |
my $sql = "insert into $table (".join(",",@cols).") values ("; |
275 |
my $comma = ""; |
my $comma = ""; |
276 |
foreach my $col (@cols) { |
foreach my $col (@cols) { |
277 |
$sql .= $comma.$mdbh->quote($row->{$col}); |
$sql .= $comma.$dbh->quote($row->{$col}); |
278 |
$comma = ","; |
$comma = ","; |
279 |
} |
} |
280 |
$sql.=")"; |
$sql.=")"; |
284 |
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285 |
# delete from slave database |
# delete from slave database |
286 |
sub sql_delete { |
sub sql_delete { |
287 |
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my $dbh = shift @_ || die "need dbh"; |
288 |
my $table = shift @_ || die "need table as argument"; |
my $table = shift @_ || die "need table as argument"; |
289 |
my $row = shift @_ || die "need row as argument"; |
my $row = shift @_ || die "need row as argument"; |
290 |
my @cols_pk = @_; |
my @cols_pk = @_; |
291 |
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292 |
my $where = sql_where(@cols_pk); |
my $where = sql_where(@cols_pk); |
293 |
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294 |
my $sql = "delete from $table "; |
my $sql = "delete from $table"; |
295 |
foreach my $col (@cols_pk) { |
foreach my $col (@cols_pk) { |
296 |
my $val = $sdbh->quote($row->{$col}) || die "can't find value in row for col $col"; |
my $val = $dbh->quote($row->{$col}) || die "can't find value in row for col $col"; |
297 |
$where =~ s/\?/$val/; |
$where =~ s/\?/$val/; |
298 |
} |
} |
299 |
$sql .= $where; |
$sql .= $where; |
303 |
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304 |
# update row in slave database |
# update row in slave database |
305 |
sub sql_update { |
sub sql_update { |
306 |
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my $dbh = shift @_ || die "need dbh"; |
307 |
my $table = shift @_ || die "need table as argument"; |
my $table = shift @_ || die "need table as argument"; |
308 |
my $col = shift @_ || die "need col to update"; |
my $col = shift @_ || die "need col to update"; |
309 |
my $val = shift @_ || die "need new val"; |
my $row = shift @_ || die "need row"; |
310 |
my @cols_pk = @_ || die "need pk idenitifier"; |
my @cols_pk = @_; |
311 |
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312 |
my $sql = "udate $table set $col=".$mdbh->quote($val); |
my $sql = "update $table set $col=".$dbh->quote($row->{$col}); |
313 |
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my $where = sql_where(@cols_pk); |
314 |
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foreach my $col (@cols_pk) { |
315 |
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my $val = $dbh->quote($row->{$col}) || die "can't find value in row for col $col"; |
316 |
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$where =~ s/\?/$val/; |
317 |
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} |
318 |
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$sql .= $where; |
319 |
debug_sql($sql); |
debug_sql($sql); |
320 |
return $sql; |
return $sql; |
321 |
} |
} |
335 |
$diff_row++; |
$diff_row++; |
336 |
$pk_same = 0; |
$pk_same = 0; |
337 |
print STDERR "EXTRA row in table '$table' pk: [".join(",",@cols_pk)."] value (".join(",",pk_val($srow,@cols_pk)).")\n" if ($verbose); |
print STDERR "EXTRA row in table '$table' pk: [".join(",",@cols_pk)."] value (".join(",",pk_val($srow,@cols_pk)).")\n" if ($verbose); |
338 |
print sql_delete($table,$srow,@cols_pk),";\n"; |
print sql_delete($sdbh,$table,$srow,@cols_pk),";\n"; |
339 |
$have_srow = FETCH_ROW; |
$have_srow = FETCH_ROW; |
340 |
last; |
last; |
341 |
} elsif ( ($have_mrow == HAVE_ROW && $have_srow == NO_ROW) || |
} elsif ( ($have_mrow == HAVE_ROW && $have_srow == NO_ROW) || |
343 |
$diff_row++; |
$diff_row++; |
344 |
$pk_same = 0; |
$pk_same = 0; |
345 |
print STDERR "MISSING row in table '$table' pk: [".join(",",@cols_pk)."] value (".join(",",pk_val($mrow,@cols_pk)).")\n" if ($verbose); |
print STDERR "MISSING row in table '$table' pk: [".join(",",@cols_pk)."] value (".join(",",pk_val($mrow,@cols_pk)).")\n" if ($verbose); |
346 |
print sql_insert($table,$mrow,@cols),";\n"; |
print sql_insert($mdbh,$table,$mrow,@cols),";\n"; |
347 |
$have_mrow = FETCH_ROW; |
$have_mrow = FETCH_ROW; |
348 |
last; |
last; |
349 |
} |
} |
355 |
if ($mrow->{$col} ne $srow->{$col}) { |
if ($mrow->{$col} ne $srow->{$col}) { |
356 |
$diff_row++; |
$diff_row++; |
357 |
print STDERR "DIFF in table '$table' row ($col): [".join(",",@cols_pk)."] '$mrow->{$col}' != '$srow->{$col}'\n" if ($verbose); |
print STDERR "DIFF in table '$table' row ($col): [".join(",",@cols_pk)."] '$mrow->{$col}' != '$srow->{$col}'\n" if ($verbose); |
358 |
print sql_update($table,$col,$mrow->{$col},@cols_pk),";\n"; |
print sql_update($mdbh,$table,$col,$mrow,@cols_pk),";\n"; |
359 |
} |
} |
360 |
} |
} |
361 |
$have_mrow = FETCH_ROW; |
$have_mrow = FETCH_ROW; |
367 |
$diff_total += $diff_row; |
$diff_total += $diff_row; |
368 |
} |
} |
369 |
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370 |
print STDERR "$diff_total differences in all tables\n" if ($verbose && $diff_total > 0); |
if ($verbose) { |
371 |
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if ($diff_total == 0) { |
372 |
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print STDERR "databases are same"; |
373 |
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} elsif ($diff_total > 0) { |
374 |
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print STDERR "$diff_total differences in all tables\n"; |
375 |
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} else { |
376 |
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die "this shouldn't happend. please report a bug!"; |
377 |
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} |
378 |
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} |
379 |
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380 |
$mdbh->disconnect(); |
$mdbh->disconnect(); |
381 |
$sdbh->disconnect(); |
$sdbh->disconnect(); |