Index: trunk/ippTools/share/pxadmin_create_tables.sql
===================================================================
--- trunk/ippTools/share/pxadmin_create_tables.sql	(revision 28428)
+++ trunk/ippTools/share/pxadmin_create_tables.sql	(revision 28486)
@@ -1715,4 +1715,6 @@
 ) ENGINE=innodb DEFAULT CHARSET=latin1;
 
+
+-- Processing labels with their priorities
 CREATE TABLE Label (
     label       VARCHAR(64),
@@ -1723,4 +1725,101 @@
     KEY(priority),
     KEY(active)
+) ENGINE=innodb DEFAULT CHARSET=latin1;
+
+-- Tables to support background restoration
+
+-- Background replacement on a chipRun
+CREATE TABLE chipBackgroundRun (
+    chip_bg_id BIGINT AUTO_INCREMENT, -- unique identifier
+    chip_id BIGINT NOT NULL,          -- link to chipRun
+    state VARCHAR(64) NOT NULL,       -- state of run (new, full, etc.)
+    workdir VARCHAR(255) NOT NULL,    -- working directory
+    label VARCHAR(64),                -- processing label
+    data_group VARCHAR(64),           -- group for data
+    dist_group VARCHAR(64),           -- group for distribution
+    reduction VARCHAR(64),    -- reduction class (for altering recipe)
+    note VARCHAR(255),        -- note
+    registered TIMESTAMP DEFAULT CURRENT_TIMESTAMP, -- time run was registered
+    magicked BIGINT DEFAULT 0 NOT NULL, -- magic status
+    PRIMARY KEY(chip_bg_id),
+    KEY(chip_id),
+    KEY(state),
+    KEY(label),
+    KEY(data_group),
+    KEY(dist_group),
+    FOREIGN KEY(chip_id) REFERENCES chipRun(chip_id)
+) ENGINE=innodb DEFAULT CHARSET=latin1;
+
+-- Results of background replacement from chipBackgroundRun
+CREATE TABLE chipBackgroundImfile (
+    chip_bg_id BIGINT NOT NULL,        -- unique identifier
+    class_id VARCHAR(64) NOT NULL,     -- class (component) identifier
+    path_base VARCHAR(255) NOT NULL,   -- root name for outputs
+    magicked BIGINT,                   -- magic_id if magicked
+    dtime_script FLOAT,                -- elapsed time for script
+    hostname VARCHAR(64) NOT NULL,     -- host that executed script
+    quality SMALLINT NOT NULL,         -- bad quality flag
+    fault SMALLINT NOT NULL,           -- fault code
+    software_ver VARCHAR(16),          -- software version
+    bg FLOAT,                          -- background level
+    bg_stdev FLOAT,                    -- stdev of background
+    maskfrac_npix FLOAT,               -- Number of pixels masked
+    maskfrac_static FLOAT,             -- Fraction masked static
+    maskfrac_dynamic FLOAT,            -- Fraction masked dynamic
+    maskfrac_magic FLOAT,              -- Fraction masked magic
+    maskfrac_advisory FLOAT,           -- Fraction masked advisory
+    PRIMARY KEY(chip_bg_id,class_id),
+    KEY(fault),
+    KEY(quality),
+    FOREIGN KEY(chip_bg_id) REFERENCES chipBackgroundRun(chip_bg_id)
+) ENGINE=innodb DEFAULT CHARSET=latin1;
+
+-- Background replacement on a warpRun (utilising chipBackgroundRun)
+CREATE TABLE warpBackgroundRun (
+    warp_bg_id BIGINT AUTO_INCREMENT, -- unique identifier
+    warp_id BIGINT NOT NULL,          -- link to warpRun
+    chip_bg_id BIGINT NOT NULL,       -- link to chipBackgroundRun
+    state VARCHAR(64) NOT NULL,       -- state of run (new, full, etc.)
+    workdir VARCHAR(255) NOT NULL,    -- working directory
+    label VARCHAR(64),                -- processing label
+    data_group VARCHAR(64),           -- group for data
+    dist_group VARCHAR(64),           -- group for distribution
+    reduction VARCHAR(64),    -- reduction class (for altering recipe)
+    note VARCHAR(255),        -- note
+    registered TIMESTAMP DEFAULT CURRENT_TIMESTAMP, -- time run was registered
+    magicked BIGINT DEFAULT 0 NOT NULL, -- magic status
+    PRIMARY KEY(warp_bg_id),
+    KEY(warp_id),
+    KEY(chip_bg_id),
+    KEY(state),
+    KEY(label),
+    KEY(data_group),
+    KEY(dist_group),
+    FOREIGN KEY(warp_id) REFERENCES warpRun(warp_id),
+    FOREIGN KEY(chip_bg_id) REFERENCES chipBackgroundRun(chip_bg_id)
+) ENGINE=innodb DEFAULT CHARSET=latin1;
+
+-- Results of background replacement from warpBackgroundRun
+CREATE TABLE warpBackgroundSkyfile (
+    warp_bg_id BIGINT NOT NULL,        -- unique identifier
+    skycell_id VARCHAR(64) NOT NULL,   -- skycell identifier
+    path_base VARCHAR(255) NOT NULL,   -- root name for outputs
+    magicked BIGINT,                   -- magic_id if magicked
+    dtime_script FLOAT,                -- elapsed time for script
+    hostname VARCHAR(64) NOT NULL,     -- host that executed script
+    quality SMALLINT NOT NULL,         -- bad quality flag
+    fault SMALLINT NOT NULL,           -- fault code
+    software_ver VARCHAR(16),          -- software version
+    bg FLOAT,                          -- background level
+    bg_stdev FLOAT,                    -- stdev of background
+    maskfrac_npix FLOAT,               -- Number of pixels masked
+    maskfrac_static FLOAT,             -- Fraction masked static
+    maskfrac_dynamic FLOAT,            -- Fraction masked dynamic
+    maskfrac_magic FLOAT,              -- Fraction masked magic
+    maskfrac_advisory FLOAT,           -- Fraction masked advisory
+    PRIMARY KEY(warp_bg_id,skycell_id),
+    KEY(fault),
+    KEY(quality),
+    FOREIGN KEY(warp_bg_id) REFERENCES warpBackgroundRun(warp_bg_id)
 ) ENGINE=innodb DEFAULT CHARSET=latin1;