Modified compressfromtable function to leverage the worker multithrea…

…d ability (#732)

Added a functionality to utilize sortworker threads in case of multithreaded compression for WDB

#725 use hdbtypes and gatewaytypes (#729)

* #725 remove gateway connection

* #725 use hdbtypes and gatewaytypes

720-fixes-for-kdb-x (#721)

merge.q now generates list of groups of first character syms to group…

… save with in wdb.q, updated wdb.q to handle partition flag partbyfirstchar

Only upsert once for each distinct character group (#714)

* Only upsert once for each distinct character group

* .Q.fu optimisation.

Co-authored-by: Ryan Cheale <[email protected]>

* Reduced changes to upserttopartition

---------

Co-authored-by: Ryan Cheale <[email protected]>

Partbyinitialchar (#712)

* Commit for parting by first character of symbol column in WDB, and end of day sort/merge for this partitioning

Add parallel compression for multithreaded process (#711)

* Add parallel compression for multithreaded process

* Ammendments to the parallel_compression logic to
clean the code and make it more modular depending
on threads count

adding replaymaxrows for optional row count on recovery (#688)

Fix partbyenum to enumerate against placeholding symbol (#691)

Fix partbyenum logic to enumerate against TORQNULLSYMBOL symbol in the event of a null partition name

Fix IDB intraday write (#689)