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C++ run-time interface for TMUDFs

blueprint cmp-tmudf-compile-time-interface

- Support for C++ run-time interface:

- A new language, C++ is added to langman, the existing

LanguageManagerC handles both C and C++

- Two new parameter styles got added, C++ and Java

object-oriented parameter styles. Routines written in C++

use the new object-oriented C++ parameter style. The compiler

interface is only supported for that style (and in the future

for the Java object-oriented style).

- Also added one more compile time interface, the "completeDescription()"

call in the generator. Added logic to extract the UDRPlanInfo of

the optimal plan.

- Changes to UDRInvocationInfo and UDRPlanInfo classes:

- UDRInvocationInfo and UDRPlanInfo objects can now be serialized

and they are added to generated plans, as part of the UDR TDB.

- Split TableInfo into TupleInfo and TableInfo classes. TupleInfo

is now the common base class for describing both parameters and

input/output tables.

- TypeInfo now has offsets for data, null indicator and varchar


- New get<type> and set<type> methods on class TupleInfo, to be

used at compile time for parameters and at runtime for parameters,

input and output tables.

- Added a "call phase" member, to be able to throw exceptions when

certain methods are called at the wrong time (e.g. trying to modify

compile time members at runtime).

- Routine class in langman now has a new subclass, LmRoutineCppObj

and a new method, invokeRoutineMethod, that is used to invoke

the object-oriented methods, requiring UDRInvocationInfo and

UDRPlanInfo as parameters.

- Fixed some executor issues with error handling for UDFs, this is

still not very well supported

- Emitting the EOD row in the UDF is no longer required, and no longer

supported or even possible.

- UDRPlanInfo is now part of the physical properties, so that we

can extract it from the optimal plan.

- Disabling TMUDF as the inner of a nested join - for now.

We might support this "routine join" at a later time.

- regress/udr/TEST001:

- SESSIONIZE_STATIC remains in C, but other TMUDFs are now

rewritten in C++ (the runtime part that was not yet in C++)

- SESSIONIZE_DYNAMIC is now the same as the example on the wiki

- regress/udr/TEST002: Added some tests for event log reader UDF,

but can't add the part that copies a sample log file, since

in Jenkins, we don't have $MY_SQROOT set. Tried the test on my

workstation, though. Steve tells me $MY_SQROOT should be available,

so in a future checkin I'll enable this code again.

- For patch set 2: Removed fix for LP bug 1420539 and addressed

other review comments.

Change-Id: I008ad68a8f25f1aaee94e1c45bbf097a267129bb

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Fixed typos in user-visible messages and sample code

Fixed spellings and minor grammar in strings used in

in output, and sample code supplied to users.

One possibly harmful misspelling was found in source code,

file sqf/monitor/linux/montim.cxx used "Contianer_ExitProcess"

where it should have used "Container_ExitProcess".

Five files which could be changed for this reason are being held back

because they are also in open change 875. They will be checked in after

that change is merged to the main branch:






In patch set 2, modified these files as notde by reviewer:







Change-Id: I3761e9e1518ab39415806bba0f4ed93d14e1d41c

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TMUDF C++ compiler interface, part of log-reading TMUDF

This is the infrastructure for a new C++ interface for TMUDFs

(table-mapping UDFs). It is used by a new log-reading TMUDF that

is not yet complete, but should be finished in the next few days.

See blueprint cmp-tmudf-compile-time-interface for more info.

Change-Id: I5a74e461462313b6d9722ac0deb21cd16c4b02ce

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GET commands for SPJ and UDF

Fix for bug #1322691

These 7 GET statements are now supported.

get procedures [in schema <schema-name>];

get libraries [in schema <schema-name>];

get functions [in schema <schema-name>];

get table_mapping functions [in schema <schema-name>];

get procedures for library <library-name>;

get functions for library <library-name>;

get table_mapping for library <library-name>;

A fix for a problem reported by Anoop where GET TABLES IN SCHEMA <hive-schema-name> did not work is also fixed. The issue was that the schema name was not getting passed through when the internal statement was used to retrieve tables ina hive schema.

Change-Id: I4649a0432ed766504a95cb6da34b0c01881fc1c3

  1. … 11 more files in changeset.
Initial code drop of Trafodion

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