Re-group items.
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Bruce Momjian
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doc/TODO
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doc/TODO
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TODO list for PostgreSQL
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========================
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Last updated: Tue Jan 22 15:49:54 EST 2002
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Last updated: Tue Jan 22 16:54:39 EST 2002
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Current maintainer: Bruce Momjian (pgman@candle.pha.pa.us)
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@ -35,55 +35,75 @@ URGENT
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* Point-in-time data recovery using backup and write-ahead log
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* Allow row re-use without vacuum (Tom)
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ADMIN
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REPORTING
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* Allow elog() to return error codes, module name, file name, line
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number, not just messages (Peter E)
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* Add error codes (Peter E)
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* -Allow international error message support (Peter E)
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* Change DEBUG startup tag to NOTICE; change NOTICE to output to client
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only if client exists (Bruce)
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* Show location of syntax error in query [yacc]
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* -Populate backend status area and write program to dump status data (Jan)
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PERMISSIONS
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* Improve control over user privileges, including table creation and
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lock use [privileges] (Karel, others)
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* Allow usernames to be specified directly in pg_hba.conf (Bruce)
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* Add PGPASSWORDFILE environment variable or ~/.pgpass to store
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user/host/password combinations
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* Remove PGPASSWORD because is insecure on some OS's
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* Make single-user local access permissions the default (Peter E)
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* -Allow single-user access without passwords using Unix socket permissions
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* -Better document pg_hba.conf host-based authentication (Bruce)
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* -Add MD5 to ODBC (Bruce)
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* Use thread-safe crypt() in libpq, if available
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ADMIN
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* Incremental backups
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* Make it easier to create a database owned by someone who can't createdb,
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perhaps CREATE DATABASE dbname WITH OWNER = "user" (Gavin)
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* Make equals sign optional in CREATE DATABASE WITH param = 'val'
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* -Permission to DELETE table also allows UPDATE (Peter E)
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* Allow elog() to return error codes, module name, file name, line
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number, not just messages (Peter E)
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* -Allow international error message support (Peter E)
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* Add error codes (Peter E)
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* -Remove unused sort files on postmaster startup (Bruce)
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* Remove unreferenced table files and temp tables during database vacuum
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or postmaster startup (Bruce)
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* -Remove unreferenced sort files during postmaster startup (Bruce)
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* Add table name mapping for numeric file names (Bruce)
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* -Better document pg_hba.conf host-based authentication (Bruce)
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* -Encrpyt passwords in pg_shadow table using MD5 (Bruce, Vince)
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* Incremental backups
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* -Encrypt passwords in pg_shadow table using MD5 (Bruce, Vince)
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* Remove behavior of postmaster -o after making postmaster/postgres
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flags unique
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* Allow usernames to be specified directly in pg_hba.conf (Bruce)
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* Add function to return compressed length of TOAST data values (Tom)
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* Change DEBUG startup tag to NOTICE; change NOTICE to output to client
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only if client exists (Bruce)
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* Allow logging of query durations
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* -Put sort files in their own directory (Bruce)
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DATA TYPES
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* Add domain capability [domain]
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* Add IPv6 capability to INET/CIDR types
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* -Add conversion function from text to inet
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* Store binary-compatible type information in the system
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* Allow better handling of numeric constants, type conversion [typeconv]
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* Support construction of array result values in expressions
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* Remove Money type, add money formatting for decimal type
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* SELECT cash_out(2) crashes because of opaque
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* Declare typein/out functions in pg_proc with a special "C string" data type
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* Functions returning sets do not totally work
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* SELECT col FROM tab WHERE numeric_col = 10.1 fails, requires quotes
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* Missing optimizer selectivities for date, r-tree, etc. [optimizer]
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* -Add SQL standard function bit_length() (Peter E)
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* -Make oid use unsigned int more reliably (Tom)
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* Change factorial to return a numeric
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* Add function to return compressed length of TOAST data values (Tom)
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* CONVERSION
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o -Add conversion function from text to inet
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o Store binary-compatible type information in the system
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o Allow better handling of numeric constants, type conversion
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[typeconv]
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o SELECT col FROM tab WHERE numeric_col = 10.1 fails, requires quotes
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* ARRAYS
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o Allow nulls in arrays
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o Allow arrays to be ORDER'ed
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o Ensure we have array-eq operators for every built-in array type
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o Support construction of array result values in expressions
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* BINARY DATA
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o -Add non-large-object binary field (already exists -- bytea)
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o -Make binary interface for TOAST columns (base64)
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@ -131,8 +151,8 @@ INDEXES
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* UNIQUE INDEX on base column not honored on inserts from inherited table
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INSERT INTO inherit_table (unique_index_col) VALUES (dup) should fail
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[inheritance]
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* Have UPDATE/DELETE clean out indexes
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* Allow UPDATE/DELETE on inherited table
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* Have UPDATE/DELETE clean out indexes
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* Add UNIQUE capability to non-btree indexes
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* Add btree index support for reltime, tinterval, regproc
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* Add rtree index support for line, lseg, path, point
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@ -177,7 +197,8 @@ COMMANDS
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* CREATE TABLE AS can not determine column lengths from expressions [atttypmod]
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* Allow UPDATE to handle complex aggregates [update]
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* Prevent create/drop scripts from allowing extra args (Bruce)
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* Allow command blocks that can ignore certain types of errors
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* Allow command blocks to ignore certain types of errors
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* ALTER
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o ALTER TABLE ADD COLUMN does not honor DEFAULT and non-CHECK CONSTRAINT
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o ALTER TABLE ADD COLUMN to inherited table put column in wrong place
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@ -192,23 +213,27 @@ COMMANDS
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o ALTER TABLE ADD COLUMN column SET DEFAULT should fill existing
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rows with DEFAULT value
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o Have ALTER TABLE OWNER change all dependant objects like indexes
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* CLUSTER
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o cluster all tables at once
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o prevent lose of indexes, permissions, inheritance (Bruce)
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o Automatically keep clustering on a table
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o Automatically maintain clustering on a table
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o -Keep statistics about clustering (Tom) [optimizer]
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* COPY
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o Allow specification of column names
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o Allow dump/load of CSV format
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o Change syntax to WITH DELIMITER, (keep old syntax around?)
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o Allow COPY to report error lines and continue; optionally
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allow error codes to be specified; requires savepoints
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* CURSOR
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o Allow BINARY option to SELECT, like we do with DECLARE
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o Allow BINARY option to SELECT, just like DECLARE
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o MOVE 0 should not move to end of cursor
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o Allow cursors to be DECLAREd/OPENed/CLOSEed outside transactions
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o Allow DELETE WHERE CURRENT OF cursor
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o Prevent DROP of table being referenced by our own open cursor
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* INSERT
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o Allow INSERT/UPDATE of system-generated oid value for a row
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o Allow INSERT INTO tab (col1, ..) VALUES (val1, ..), (val2, ..)
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@ -216,6 +241,7 @@ COMMANDS
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o Disallow missing columns in INSERT ... VALUES, per ANSI
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o Allow INSERT/UPDATE ... RETURNING new.col or old.col; handle
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RULE cases (Philip)
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* SHOW/SET
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o Add SHOW command to display locks
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o -Add SHOW command to show all settings
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@ -226,6 +252,7 @@ COMMANDS
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o Add SET PERFORMANCE_TIPS option to suggest INDEX, VACUUM, VACUUM
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ANALYZE, and CLUSTER
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o Add SHOW command to see locale
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* SERVER-SIDE LANGUAGES
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o Allow PL/PgSQL's RAISE function to take expressions
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o Fix PL/PgSQL to handle quoted mixed-case identifiers
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@ -245,15 +272,8 @@ CLIENTS
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* Allow psql \d to show temporary table structure
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* Add XML interface: psql, pg_dump, COPY, separate server (?)
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* -Fix libpq to properly handle socket failures under native MS Win32
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* -Add MD5 to ODBC (Bruce)
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* Use thread-safe crypt() in libpq, if available
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* Add config file check for $ODBCINI, $HOME/.odbc.ini, installpath/etc/odbc.ini
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* Add documentation for perl, including mention of DBI/DBD perl location
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* Add PGPASSWORDFILE environment variable or ~/.pgpass to store
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user/host/password combinations
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* Remove PGPASSWORD because is insecure on some OS's
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* -Allow single-user access without passwords using Unix socket permissions
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* Make single-user local access permissions the default (Peter E)
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* JDBC
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o Comprehensive test suite. This may be available already.
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o Updateable resultSet (must be done in backend code)
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@ -267,6 +287,7 @@ CLIENTS
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o Implement cancel() method on Statement
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o Use cursors implicitly to avoid large results (see setCursorName())
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o Add support for CallableStatements
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* ECPG
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o Implement set descriptor, using descriptor
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o Make casts work in variable initializations
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@ -283,7 +304,7 @@ CLIENTS
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o -Remove space_or_nl and line_end from pgc.l
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o Fix nested C comments
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o Add SQLSTATE
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o fix handling of DB attributes taht are arrays
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o fix handling of DB attributes that are arrays
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REFERENTIAL INTEGRITY
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@ -333,16 +354,6 @@ EXOTIC FEATURES
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* SQL*Net listener that makes PostgreSQL appear as an Oracle database
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to clients
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MISCELLANEOUS
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* Increase identifier length (NAMEDATALEN) if small performance hit
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* Increase maximum number of function parameters if little wasted space
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* -Populate backend status area and write program to dump status data (Jan)
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* -Put sort files in their own directory (Bruce)
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* Show location of syntax error in query [yacc]
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* Change representation of whole-tuple parameters to functions
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* Add optional CRC checksum to heap and index pages
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* Add WAL index reliability improvement to non-btree indexes
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PERFORMANCE
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-----------
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@ -369,7 +380,7 @@ VACUUM
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* Reduce lock time by moving tuples with read lock, then write
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lock and truncate table [vacuum]
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* -Make ANALYZE a separate command (Tom)
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* -Allow ANALYZE to ESTIMATE based on certain random precentage of rows (Tom)
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* -Allow ANALYZE to ESTIMATE based on certain random percentage of rows (Tom)
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* Add LAZY VACUUM (Vadim) [performance]
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LOCKING
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@ -396,6 +407,7 @@ WRITE-AHEAD LOG
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* Reduce number of after-change WAL writes; they exist only to gaurd against
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partial page writes
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* Turn off after-change writes if fsync is disabled (?)
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* Add WAL index reliability improvement to non-btree indexes
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OPTIMIZER/EXECUTOR
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@ -410,6 +422,7 @@ OPTIMIZER/EXECUTOR
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evaluated only once or once per query
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* Change FIXED_CHAR_SEL to 0.20 from 0.04 to give better selectivity (Bruce)
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* Make IN/NOT IN have similar performance to EXISTS/NOT EXISTS [exists]
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* Missing optimizer selectivities for date, r-tree, etc. [optimizer]
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MISCELLANEOUS
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@ -420,7 +433,6 @@ MISCELLANEOUS
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* Use mmap() rather than SYSV shared memory or to write WAL files (?) [mmap]
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* -Allow GUC configuration of maximum number of open files (Tom)
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* -Improve statistics storage in pg_class [performance] (Tom)
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* Allow logging of query durations
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* -Read pg_hba.conf only on postmaster startup or SIGHUP (Bruce)
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@ -438,7 +450,6 @@ SOURCE CODE
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* HOLDER/HOLDERTAB rename to PROCLOCK/PROCLOCKTAG (Bruce)
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* Remove LockMethodTable.prio field, not used (Bruce)
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* Add version file format stamp to heap and other table types
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* Make elog(LOG) in WAL its own output type, distinct from DEBUG
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* Rename some /contrib modules from pg* to pg_*
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* Move some things from /contrib into main tree
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* Remove warnings created by -Wcast-align
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@ -455,6 +466,11 @@ SOURCE CODE
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* Improve access-permissions check on data directory in Cygwin (Tom)
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* Report failure to find readline or zlib at end of configure run
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* Add --port flag to regression tests
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* Increase identifier length (NAMEDATALEN) if small performance hit
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* Increase maximum number of function parameters if little wasted space
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* Add documentation for perl, including mention of DBI/DBD perl location
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* Add optional CRC checksum to heap and index pages
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* Change representation of whole-tuple parameters to functions
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---------------------------------------------------------------------------
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