MySQL performance, should this take hours? - mysql

Question

I am running the following query in MySQL Workbench:
UPDATE directorylistings INNER JOIN postcodelatlng ON PostalCode = postcode
set directoryListings.Latitude = postcodelatlng.latitude, directoryListings.Longitude = postcodelatlng.longitude
WHERE PostalCode = postcode;
Table directorylistings has 9000 records, postcodelatlng has nearly 2 million records.
directorylistings has a postcode (zip code) field and I'm looking this up in postcodelatlng to retrieve and update the latitude and longitude fields in directorylistings.
Ater timeout issues I found I should change DBMS connection read time out, I set this to 36000 (10 hours). The query has been running of 5 hours so far.
My question is, is this time reasonable? Should I be indexing something? Could the query be optimised?
I did make a 2 record version of the postcodelatlng and ran the query, 16 rows were correctly changed in 0.04 seconds, so I know the query is at least workable.
I have looked at a number of Q/A's on indexing and optimising, but it's taken me over a day to get this far and if it fails again I would like to know what approach to follow. I can't keep trying things and waiting hours for the failure! I bet this query should really take seconds. I'm using a MacBook Pro with a 2.5GHz i7, 16 GB RAM and ssd drive.
Many Thanks.
cpu is at 99%. I aborted after 12 hours! to run the show create tables:
CREATE TABLE `postcodelatlng` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`postcode` varchar(8) NOT NULL,
`latitude` decimal(18,15) NOT NULL,
`longitude` decimal(18,15) NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=MyISAM AUTO_INCREMENT=1734490 DEFAULT CHARSET=latin1
CREATE TABLE `directorylistings` (
`ID` int(11) NOT NULL AUTO_INCREMENT,
`Active` tinyint(1) DEFAULT NULL,
`Tag11` tinyint(1) DEFAULT NULL,
`Minyan` tinyint(1) DEFAULT NULL,
`Latitude` double DEFAULT NULL,
`Longitude` double DEFAULT NULL,
`AffiliatedDate` double DEFAULT NULL,
`RegisteredDate` datetime DEFAULT NULL,
`AccountID` varchar(10) DEFAULT NULL,
`ShowListing` tinyint(1) DEFAULT NULL,
`Bloguser` tinyint(1) DEFAULT NULL,
`Trusted` tinyint(1) DEFAULT NULL,
`ClassifiedUser` tinyint(1) DEFAULT NULL,
`HostingID` int(11) DEFAULT NULL,
`EndDate` double DEFAULT NULL,
`EndPromoDate` datetime DEFAULT NULL,
`BaseID` int(11) DEFAULT NULL,
`Banner` varchar(50) DEFAULT NULL,
`PrivateListing` tinyint(1) DEFAULT NULL,
`Reserved1` tinyint(1) DEFAULT NULL,
`Reserved2` tinyint(1) DEFAULT NULL,
`Reserved3` tinyint(1) DEFAULT NULL,
`Reserved4` tinyint(1) DEFAULT NULL,
`Reserved5` tinyint(1) DEFAULT NULL,
`CommunityOrg` tinyint(1) DEFAULT NULL,
`Tag1` tinyint(1) DEFAULT NULL,
`Tag2` tinyint(1) DEFAULT NULL,
`Tag3` tinyint(1) DEFAULT NULL,
`Tag4` tinyint(1) DEFAULT NULL,
`Tag5` tinyint(1) DEFAULT NULL,
`Tag6` tinyint(1) DEFAULT NULL,
`Tag7` tinyint(1) DEFAULT NULL,
`Tag8` tinyint(1) DEFAULT NULL,
`Tag9` tinyint(1) DEFAULT NULL,
`Tag10` tinyint(1) DEFAULT NULL,
`Tag12` tinyint(1) DEFAULT NULL,
`Tag13` tinyint(1) DEFAULT NULL,
`Tag14` tinyint(1) DEFAULT NULL,
`ShomerShabbos` tinyint(1) DEFAULT NULL,
`CategoryID1` int(11) DEFAULT NULL,
`CategoryID2` int(11) DEFAULT NULL,
`CategoryID3` int(11) DEFAULT NULL,
`CategoryID4` int(11) DEFAULT NULL,
`CategoryID5` int(11) DEFAULT NULL,
`CategoryID6` int(11) DEFAULT NULL,
`HiddenCategory` int(11) DEFAULT NULL,
`Company` varchar(100) DEFAULT NULL,
`Slogan` varchar(250) DEFAULT NULL,
`Description` varchar(2000) DEFAULT NULL,
`CharShown` int(11) DEFAULT NULL,
`Address` varchar(100) DEFAULT NULL,
`Unit` varchar(50) DEFAULT NULL,
`Address2` varchar(150) DEFAULT NULL,
`Streetno` varchar(50) DEFAULT NULL,
`Building` varchar(50) DEFAULT NULL,
`Parade` varchar(50) DEFAULT NULL,
`Locality` varchar(50) DEFAULT NULL,
`City` varchar(50) DEFAULT NULL,
`Province` varchar(50) DEFAULT NULL,
`PostalCode` varchar(10) DEFAULT NULL,
`Country` varchar(25) DEFAULT NULL,
`PhoneNumber` varchar(70) DEFAULT NULL,
`Ext` varchar(25) DEFAULT NULL,
`PhoneNumber2` varchar(70) DEFAULT NULL,
`FaxNumber` varchar(30) DEFAULT NULL,
`CellNumber` varchar(30) DEFAULT NULL,
`WebUrl` varchar(100) DEFAULT NULL,
`Email` varchar(75) DEFAULT NULL,
`Password` varchar(30) DEFAULT NULL,
`ContactName` varchar(100) DEFAULT NULL,
`Keywords` varchar(355) DEFAULT NULL,
`Dcount` int(11) DEFAULT NULL,
`LocationID` int(11) DEFAULT NULL,
`Comments` varchar(1500) DEFAULT NULL,
`ApplicantName` varchar(200) DEFAULT NULL,
`ApplicantPhone` varchar(200) DEFAULT NULL,
`ApplicantEmail` varchar(200) DEFAULT NULL,
`Photo1` varchar(250) DEFAULT NULL,
`pRating` int(11) DEFAULT NULL,
`sRating` int(11) DEFAULT NULL,
`vRating` int(11) DEFAULT NULL,
`Private` tinyint(1) NOT NULL DEFAULT '0',
`VeryPrivate` tinyint(1) NOT NULL DEFAULT '0',
`SemiSecure` tinyint(1) NOT NULL DEFAULT '0',
`Secure` tinyint(1) NOT NULL DEFAULT '0',
`Secret` tinyint(1) NOT NULL DEFAULT '0',
`TrustHigh` tinyint(1) NOT NULL DEFAULT '0',
`FL` tinyint(1) NOT NULL DEFAULT '1',
`GJ` tinyint(1) NOT NULL DEFAULT '1',
`Recommended` tinyint(1) NOT NULL DEFAULT '0',
`NonGeo` tinyint(1) NOT NULL DEFAULT '0',
`Edited` datetime DEFAULT NULL,
`Editor` varchar(40) DEFAULT NULL,
PRIMARY KEY (`ID`),
UNIQUE KEY `ID_UNIQUE` (`ID`)
) ENGINE=InnoDB AUTO_INCREMENT=27167 DEFAULT CHARSET=utf8