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ThumbsPlus v7-v9 Questions / PostgreSQL Observations And Issues
« on: 2013-12-29 16:55:01 »
It took me several days to get ThumbsPlus 9 running on a new PostgreSQL database. I ran into several issues. I'm basically up and running with a few crashing issues.
The first issue is case sensitivity. The case sensitivity issue is well explained by the following WEB page:
[link=http://www.thenextage.com/wordpress/postgresql-case-sensitivity-part-1-the-ddl/]http://www.thenextage.com/wordpress/postgresql-case-sensitivity-part-1-the-ddl/[/link]
To sum it up PostgreSQL treats quoted table/column names as case sensitive while unquoted table/column names as case insensitive. I was able to verify the use of quoted and unquoted names by psqlodbc log files.
I found that I had to make the following changes in Thumbs9_postgres.sql:
1) Rename the table "ThumbsPlusDatabase" to "thumbsplusdatabase"
2) Rename the "Thumbnail" column "idFileType" to "idFiletype"
I used the PostgreSQL ODBC direver "psqlodbc". It was the 32bit UNICODE version. I eventually installed the latest 9.03 version. I think 9.02 would be fine. I had to set one option on the Advanced Options Page 2 "Bytea as LO: Allow the use of bytea columns for Large Objects". Are there any other options in psqlodbc that should be set?
I'm still having some PostgreSQL crashes. I have had 7 thumbnail creations in 350,000 images that caused crashes. The crash is reproducible. The crash is down underneath the psqlodbc driver in Microsoft code. I suspect the crash has something to do with bytea objects used for the thumbnails. I'm thinking about building a debug version of psqlodbc to find out more.
Thanks,
-Kurt
The first issue is case sensitivity. The case sensitivity issue is well explained by the following WEB page:
[link=http://www.thenextage.com/wordpress/postgresql-case-sensitivity-part-1-the-ddl/]http://www.thenextage.com/wordpress/postgresql-case-sensitivity-part-1-the-ddl/[/link]
To sum it up PostgreSQL treats quoted table/column names as case sensitive while unquoted table/column names as case insensitive. I was able to verify the use of quoted and unquoted names by psqlodbc log files.
I found that I had to make the following changes in Thumbs9_postgres.sql:
1) Rename the table "ThumbsPlusDatabase" to "thumbsplusdatabase"
2) Rename the "Thumbnail" column "idFileType" to "idFiletype"
I used the PostgreSQL ODBC direver "psqlodbc". It was the 32bit UNICODE version. I eventually installed the latest 9.03 version. I think 9.02 would be fine. I had to set one option on the Advanced Options Page 2 "Bytea as LO: Allow the use of bytea columns for Large Objects". Are there any other options in psqlodbc that should be set?
I'm still having some PostgreSQL crashes. I have had 7 thumbnail creations in 350,000 images that caused crashes. The crash is reproducible. The crash is down underneath the psqlodbc driver in Microsoft code. I suspect the crash has something to do with bytea objects used for the thumbnails. I'm thinking about building a debug version of psqlodbc to find out more.
Thanks,
-Kurt