alter ttrss_labels.sql_exp to text, bump schema (closes #221)

sanity_check.php

@@ -2,7 +2,7 @@
 	require_once "functions.php";
 
 	define('EXPECTED_CONFIG_VERSION', 17);
-	define('SCHEMA_VERSION', 42);
+	define('SCHEMA_VERSION', 43);
 
 	if (!file_exists("config.php")) {
 		print __("<b>Fatal Error</b>: You forgot to copy 

schema/ttrss_schema_mysql.sql

@@ -188,7 +188,7 @@ create table ttrss_filters (id integer not null primary key auto_increment,
 
 create table ttrss_labels (id integer not null primary key auto_increment, 
 	owner_uid integer not null, 
-	sql_exp varchar(250) not null,
+	sql_exp text not null,
 	description varchar(250) not null,
 	index (owner_uid),
 	foreign key (owner_uid) references ttrss_users(id) ON DELETE CASCADE) TYPE=InnoDB;
@@ -210,7 +210,7 @@ create table ttrss_tags (id integer primary key auto_increment,
 
 create table ttrss_version (schema_version int not null) TYPE=InnoDB;
 
-insert into ttrss_version values (42);
+insert into ttrss_version values (43);
 
 create table ttrss_enclosures (id serial not null primary key,
 	content_url text not null,

schema/ttrss_schema_pgsql.sql

@@ -170,7 +170,7 @@ create table ttrss_filters (id serial not null primary key,
 
 create table ttrss_labels (id serial not null primary key, 
 	owner_uid integer not null references ttrss_users(id) on delete cascade,
-	sql_exp varchar(250) not null,
+	sql_exp text not null,
 	description varchar(250) not null);
 
 create index ttrss_labels_owner_uid_index on ttrss_labels(owner_uid);
@@ -190,7 +190,7 @@ create index ttrss_tags_owner_uid_index on ttrss_tags(owner_uid);
 
 create table ttrss_version (schema_version int not null);
 
-insert into ttrss_version values (42);
+insert into ttrss_version values (43);
 
 create table ttrss_enclosures (id serial not null primary key,
 	content_url text not null,

schema/versions/mysql/43.sql

@@ -0,0 +1,3 @@
+alter table ttrss_labels change sql_exp sql_exp text not null;
+
+update ttrss_version set schema_version = 43;

schema/versions/pgsql/43.sql

@@ -0,0 +1,7 @@
+alter table ttrss_labels rename column sql_exp to sql_exp_old;
+alter table ttrss_labels add column sql_exp text;
+update ttrss_labels set sql_exp = sql_exp_old;
+alter table ttrss_labels alter column sql_exp set not null;
+alter table ttrss_labels drop column sql_exp_old;
+
+update ttrss_version set schema_version = 43;