CmpDDLCatErrorCodes.h

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TRAFODION [2025] Initialize authorization cannot be run in a DDL transaction

As part of DDL transaction work, there is a goal to run all DDL and DDL like

operations in a single DDL transaction. This delivery changes initialize

trafodion and initialize authorization to make this happen.

Prior to DDL transactions, initialize authorization would either add or drop

authorization support. Part of this required that all compiler processes

associated with the master process be killed to clear out information stored

in memory. When DDL transactions were added, killing the compiler processes

caused the DDL transaction to abort. This means that initialize authorization

could not be run in DDL transation. Initialize trafodion calls initialize

authorization when security is enabled, so initialize trafodion was not able

to run in DDL transactions.

A change was made to send a CmpMessageDatabaseUser request to the child arkcmp

processes after authorization was initialized or dropped. This request is

reponsible for setting appropriate memory attributes so we no longer require

arkcmps to be terminated. Changes were piggy backed on current support that

sends usernames and IDs to child arkcmps.

A new method called ContextCli::updateMxcmpSession is called during initialize

and drop requests. This calls send a message to associated arkcmp process to

update session attributes for user information. It then propagates the message

to other child arkcmp processes.

To make this work, the following code was changed to generate and recognize the

new message format:

CmpStatement.cpp (process - CmpMessageDatabaseUser)

Context.cpp (createMxcmpSession & updateMxcmpSession)

ExSqlComp.cpp (resendControls)

The following was changed to support DDL transactions:

CmpSeabaseDDLcommon.cpp (initSeabaseAuthorization & dropSeabaseAuthorization)

GenPreCode.cpp (allow DDL transaction for initialize trafodion)

SqlciErrors.txt (allow initialize authorization to succeed with warnings)

This also includes a change on how Trafodion processes alter user operations

that allow predefined users to be modified by someone with the correct

privileges.

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TRAFODION-1789 & TRAFODION-1812

TRAFODION-1789: Create the histogram metadata tables at schema creation time

Added a list of MDTableInfo structs called allMDHistInfo that describes

histogram tables similar to other metadata tables in CmpSeabaseDDLmd.h.

During schema create, this list is traversed and each histogram table created.

This is performed by calling the static function - createHistogramTables.

Similarily, this list is traversed at drop schema time to drop existing

histogram tables. With this change, you can drop a schema without the

cascade option when only histogram tables remain.

In histogram code (hs_cli.cpp), removed hard coded create statements and

changed code to call the createHistogramTables static function. With this

change, there is only one place where Histogram tables are defined. Today,

histogram tables are defined in ../sqlcomp/CmpSeabaseDDLmd.h and

../ustat/hs_cli.cpp

TRAFODION-1812: cleanup schema causes transaction to hang in aborting state

While testing the fix for TRAFODION-1789, some of the regression tests failed.

There is an issue when trying to cleanup a schema that contains histogram

tables. Changes were made to cleanup histogram tables first and to avoid

deleting histogram entries for the histogram table itself.

Added IF EXISTS syntax to routine drops. Also added IF NOT EXISTS syntax to

routine creates. The DROP IF EXISTS was needed to fix an issue when dropping

routines as part of drop schema code.

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Resolving the following JIRAs : TRAFODION-1604 - Fixed one place in CharType.h where 100 was the max limit for lob handle length TRAFODION-1596 - Added checks in alter code to prevent altering adding LOB columns. TRAFODION-1598 - Added several syntax filxes in parser and ExpLOBaccess.cpp to address these problems. TRAFODION-1599 - Added checks in binder to prevent sample columns from being LOB columns. TRAFODION-1602 - Added checks in DDL layer to prevent LOB columns as unique constraints or store by.

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JIRA TRAFODION-19 && TRAFODION-1483

JIRA TRAFODION-19:

Made the following changes:

Removed support for locklength from the parser

Test and fix issues with create table variants

Made recommended changes as mentioned in the initial delivery

Rename some of the variable names to make them more informative

Assume prefix length for HIVE and HBASE tables can be different and verify code works correctly

Fix commented code to be correct and remove lines no longer needed

Update error text for messages 1180 to include external table type

Beefed up the new regression test (hive/TEST009)

Check column list from hive descriptor with external table description and return an error if there is a mismatch

Add an error if the user specifies a different target schema name than the source

Allow someone with privileges to drop HIVE exernal schemas

JIRA TRAFODION-1483:

Added support for external HBase tables similar to Hive table support

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Fixes for Jira's trafodion-19 & trafodion-29

See Jira's for a description.

Also removed obsolete code from the parser

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Part 1 of updates to licensing info in Trafodion source

Added NOTICE.txt file in root directory per ASF guidelines.

Updated copyright text in one directory (core/sql/sqlcomp)

as a test of a tool to update such text. One or more later

check-ins will take care of the remaining directories.

  1. … 63 more files in changeset.
TRAFODION-13 Multiple MTD-related bug fixes, UDF and RI constraint fixes

Bug fixes for Multi-temperature Data aka MTD aka divisioning and a related bug for RI constraints. These will be converted to JIRAs soon.

Also added an Excel tool to draw query plans, has limited support only.

LaunchPad 1466209 Referential constraint column correspondence not recorded correctly in metadata

LaunchPad 1417739 Multi-temperature data: should not allow divisioning on float datatype.

LaunchPad 1417741 multi-temperature data: divisioning on (date_part('year', add_months(...)) fails with ERROR[3044], ERROR[1135]

LaunchPad 1417743 multi-temperature data: able to define a RI constraint on a system column.

LaunchPad 1427527 Multi-temperature data: create-table-like-with-constrains-without-division table should not be divisioned

LaunchPad 1442774 TMUDF: Compiling a TPCH query with TMUDF returns internal assertion in BaseTypes.cpp:118

Details:

LaunchPad 1466209 Referential constraint column correspondence not recorded correctly in metadata

For an RI constraint, we record a list of foreign key columns in the

KEYS metadata table, as well as the UID of the referenced uniqueness

constraint. The foreign key column list is matched with the unique key

columns. We needed to add logic to reorder the lists in case the

unique constraint was specified in a different order. For example, in

seabase/TEST020:

alter table test020t9 add constraint test020t9ri4

foreign key (r1,r2) references test020t8 (c3,c2);

This will trigger the reorder logic to convert it to

foreign key (r2,r1) references test020t8 (c2,c3)

to match the index on test020t8 (c2,c3).

LaunchPad 1417739 Multi-temperature data: should not allow divisioning on float datatype.

Added a check and a new error number 4257. Note that we do allow float

as key columns, and that could have similar issues that rounding

errors could cause us to find a row sometimes and not other times,

although those issues should be rare. Nevertheless, I prefer not to

take that chance and allow divisioning on floating point columns (it

does not make much sense anyway).

LaunchPad 1417741 multi-temperature data: divisioning on (date_part('year', add_months(...)) fails with ERROR[3044], ERROR[1135]

There are really two issues here. First, the CAST operator that is

internally used in ADD_MONTHS in the parser generates a nullable

result, since in the parser we don't know whether the result is

nullable or not. We need to fix that in the binder to avoid the error

1135. Second, there were some cases where the interval leading

precision of a data type was not initialized correctly (error 3044).

LaunchPad 1417743 multi-temperature data: able to define a RI constraint on a system column.

This uncovered a bigger issue in the integration between MTD and RI

constraints. We need to ignore salt and divisioning columns in the

keys we consider, since these columns are redundant and not

user-visible. Added code to do that and while working on it, also

found the first bug in this list.

LaunchPad 1427527 Multi-temperature data: create-table-like-with-constrains-without-division table should not be divisioned

A typo in the parser code led us to ignore the WITHOUT DIVISION clause.

LaunchPad 1442774 TMUDF: Compiling a TPCH query with TMUDF returns internal assertion in BaseTypes.cpp:118

Used incorrect set of values in preCodeGen.

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Merge remote branch 'core/master'

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Move core into subdir to combine repos

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Move core into subdir to combine repos

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Move core into subdir to combine repos

Use: git log --follow -- <file>

to view file history thru renames.

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