/usr/share/postgresql-9.1-postgis/utils/postgis_proc_upgrade.pl is in postgresql-9.1-postgis 1.5.3-2.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 | #!/usr/bin/perl
#
# This script produces an .sql file containing
# CREATE OR REPLACE calls for each function
# in postgis.sql
#
# In addition, the transaction contains
# a check for Major postgis_lib_version()
# to match the one contained in lwpostgis.sql
#
# This never happens by just running make install
# as MODULE_FILENAME contains SO_MAJOR under
# all architectures.
#
#
eval "exec perl -w $0 $@"
if (0);
use strict;
#
# Conditionally upgraded types and operators. Only include these
# if the major numbers in version_from are less than the version_to
# number.
#
my $objs = {
"104" => {
"types" => {
"box3d_extent" => 1,
"pgis_abs" => 1
}
},
"105" => {
"operators" => {
"geography >" => 1,
"geography >=" => 1,
"geography =" => 1,
"geography <=" => 1,
"geography <" => 1,
"geography &&" => 1
},
"opclasses" => {
"gist_geography_ops" => 1,
"btree_geography_ops" => 1
},
"views" => {
"geography_columns" => 1
},
"types" => {
"geography" => 1,
"gidx" => 1
}
}
};
#
# Commandline argument handling
#
($#ARGV == 0) ||
die "Usage: perl postgis_proc_upgrade.pl <postgis.sql> <version_from> [<schema>]\nCreates a new SQL script to upgrade all of the PostGIS functions.\n"
if ( @ARGV < 1 || @ARGV > 3 );
my $sql_file = $ARGV[0];
my $version_to = "";
my $version_to_num = 0;
my $version_from = $ARGV[1];
my $version_from_num = 0;
my $schema = "";
$schema = $ARGV[2] if @ARGV > 2;
if ( $version_from =~ /^(\d+)\.(\d+)/ )
{
$version_from_num = 100 * $1 + $2;
}
else
{
die "Version from number invalid, must be of form X.X\n";
}
die "Unable to open input SQL file $sql_file\n"
if ( ! -f $sql_file );
#
# Search the SQL file for the target version number (the
# version we are upgrading *to*.
#
open( INPUT, $sql_file ) || die "Couldn't open file: $sql_file\n";
while(<INPUT>)
{
#
# Since 1.1.0 scripts/lib/release versions are the same
#
if (/INSTALL VERSION: (.*)/)
{
$version_to = $1;
last;
}
}
close(INPUT);
die "Unable to locate target new version number in $sql_file\n"
if( ! $version_to );
if ( $version_to =~ /(\d+)\.(\d+)\..*/ )
{
$version_to = $1 . "." . $2;
$version_to_num = 100 * $1 + $2;
}
else
{
die "Version to number invalid, must be of form X.X.X\n";
}
print qq{
--
-- UPGRADE SCRIPT FROM PostGIS $version_from TO PostGIS $version_to
--
};
print "BEGIN;\n";
print "SET search_path TO $schema;\n" if $schema;
#
# Add in the conditional check function to ensure this script is
# not being applied to a major version update.
#
while(<DATA>)
{
s/NEWVERSION/$version_to/g;
print;
}
#
# Go through the SQL file and strip out objects that cannot be
# applied to an existing, loaded database: types and operators
# and operator classes that have already been defined.
#
open( INPUT, $sql_file ) || die "Couldn't open file: $sql_file\n";
while(<INPUT>)
{
next if ( /^\-\-/ );
#
# Allow through deprecations from postgis_drop.sql
#
print if ( /^drop function if exists/i );
print if ( /^drop aggregate if exists/i );
if ( /^create or replace function/i )
{
print $_;
my $endfunc = 0;
while(<INPUT>)
{
print $_;
$endfunc = 1 if /^\s*LANGUAGE /;
last if ( $endfunc && /\;/ );
}
}
if ( /^create type (\w+)/i )
{
my $newtype = $1;
my $def .= $_;
while(<INPUT>)
{
$def .= $_;
last if /\)/;
}
my $ver = $version_from_num + 1;
while( $version_from_num < $version_to_num && $ver <= $version_to_num )
{
if( $objs->{$ver}->{"types"}->{$newtype} )
{
print $def;
last;
}
$ver++;
}
}
# This code handles casts by dropping and recreating them.
if ( /^create cast\s+\(\s*(\w+)\s+as\s+(\w+)\)/i )
{
my $type1 = $1;
my $type2 = $2;
my $def = $_;
print "DROP CAST IF EXISTS ($type1 AS $type2);\n";
print $def;
}
# This code handles aggregates by dropping and recreating them.
if ( /^create aggregate\s+(\S+)\s*\(/i )
{
my $aggname = $1;
my $aggtype = 'unknown';
my $def = $_;
while(<INPUT>)
{
$def .= $_;
$aggtype = $1 if ( /basetype\s*=\s*([^,]*)\s*,/i );
last if /\);/;
}
print "DROP AGGREGATE IF EXISTS $aggname($aggtype);\n";
print $def;
}
# This code handles operators by creating them if we are doing a major upgrade
if ( /^create operator\s+(\S+)\s*\(/i )
{
my $opname = $1;
my $optype = 'unknown';
my $def = $_;
while(<INPUT>)
{
$def .= $_;
$optype = $1 if ( /leftarg\s*=\s*(\w+)\s*,/i );
last if /\);/;
}
my $opsig = $optype . " " . $opname;
my $ver = $version_from_num + 1;
while( $version_from_num < $version_to_num && $ver <= $version_to_num )
{
if( $objs->{$ver}->{"operators"}->{$opsig} )
{
print $def;
last;
}
$ver++;
}
}
# This code handles view by creating them if we are doing a major upgrade
if ( /^create or replace view\s+(\S+)\s*/i )
{
my $viewname = $1;
my $def = $_;
while(<INPUT>)
{
$def .= $_;
last if /\;\s*$/;
}
my $ver = $version_from_num + 1;
while( $version_from_num < $version_to_num && $ver <= $version_to_num )
{
if( $objs->{$ver}->{"views"}->{$viewname} )
{
print $def;
last;
}
$ver++;
}
}
# This code handles operator classes by creating them if we are doing a major upgrade
if ( /^create operator class\s+(\w+)\s*/i )
{
my $opclassname = $1;
my $opctype = 'unknown';
my $opcidx = 'unknown';
my $def = $_;
while(<INPUT>)
{
$def .= $_;
$opctype = $1 if ( /for type (\w+) /i );
$opcidx = $1 if ( /using (\w+) /i );
last if /\);/;
}
$opctype =~ tr/A-Z/a-z/;
$opcidx =~ tr/A-Z/a-z/;
my $ver = $version_from_num + 1;
while( $version_from_num < $version_to_num && $ver <= $version_to_num )
{
if( $objs->{$ver}->{"opclasses"}->{$opclassname} )
{
print $def;
last;
}
$ver++;
}
}
}
close( INPUT );
print "COMMIT;\n";
1;
__END__
CREATE OR REPLACE FUNCTION postgis_major_version_check()
RETURNS text
AS '
DECLARE
old_scripts text;
new_scripts text;
old_maj text;
new_maj text;
BEGIN
--
-- This uses postgis_lib_version() rather then
-- postgis_scripts_installed() as in 1.0 because
-- in the 1.0 => 1.1 transition that would result
-- in an impossible upgrade:
--
-- from 0.3.0 to 1.1.0
--
-- Next releases will still be ok as
-- postgis_lib_version() and postgis_scripts_installed()
-- would both return actual PostGIS release number.
--
SELECT into old_scripts postgis_lib_version();
SELECT into new_scripts ''NEWVERSION'';
SELECT into old_maj substring(old_scripts from 1 for 2);
SELECT into new_maj substring(new_scripts from 1 for 2);
IF old_maj != new_maj THEN
RAISE EXCEPTION ''Upgrade from version % to version % requires a dump/reload. See PostGIS manual for instructions'', old_scripts, new_scripts;
ELSE
RETURN ''Scripts versions checked for upgrade: ok'';
END IF;
END
'
LANGUAGE 'plpgsql';
SELECT postgis_major_version_check();
DROP FUNCTION postgis_major_version_check();
|