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add editor hints, whitespace changes

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whitespace changes

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- Convert frequenty used functions from plpgsql

to strict and stable SQL functions, which allow

the PostgreSQL more optimizations

* acs_group__member_p/3

* site_node__url/1

- bump version number to 5.10.0d27

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site nodes reform part 2: change from tree_sortkeys to recursive queries

-- This upgrade script completes the commits "change queries on

-- site-node tree from tree_sortkey to recursive queries" from Oct 21,

-- 2018, 4 months ago. This upgrade has the purpose to drop the now

-- obsolete triggers and indices.

--

-- Delaying the 2nd part had the purpose to make upgrades more smooth,

-- at least for upgrades via .apm files. Without site nodes working,

-- users cannot navigate on their server unless it is restarted.

--

-- http://fisheye.openacs.org/changelog/OpenACS?cs=MAIN%3Agustafn%3A20181021173623

-- http://fisheye.openacs.org/changelog/OpenACS?cs=MAIN%3Agustafn%3A20181021175135

-- http://fisheye.openacs.org/changelog/OpenACS?cs=MAIN%3Agustafn%3A20181022074137

-- http://fisheye.openacs.org/changelog/OpenACS?cs=MAIN%3Agustafn%3A20181022085126

-- http://fisheye.openacs.org/changelog/OpenACS?cs=MAIN%3Agustafn%3A20181022081230

--

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imporve spelling

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merged changes from the oacs-5-9 branch and resolved conflicts

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- added kernel parameter MaxUrlLength (default 2000) to remove

hard-coded length in request-processor-procs.

- lifted data model restriction of 100 characters for url-segments

(changing types of "site_nodes.name" from "varchar(100)" to "text")

(PostgreSQL only)

- site_node__node_id

* use built-in string functions instead of characterwise loop

* use default for last argument

* Improve source-code documentation

- bumped version number of kernel to 5.9.1d15

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- reduce verbosity

Merging back to HEAD all changes that happened in branch oacs-5-8 between tags: vg-merge-oacs-5-8-from-20141027 and vg-merge-oacs-5-8-from-20150427

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- add missing indices

- bump version number to 5.8.3d2

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Creating recursive version of permissions functions iff pg version is >= 8.4.

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Rewriting acs_permission__permission_p function to use recursive queries ( available in PG since 8.4 ) and modifiying

queries around core packages to avoid checking persmissions using a subquery on the acs_object_party_privilege_map view.

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Bring PostgreSQL functions closer to the current level of PL/pgSQL:

- upgrade PL/pgSQL functions to the $$ notation (recommended since pg8.0, jan 2005).

- get rid of backslash usages in function definitions

- drop aliases in favor of named function arguments (recommended since pg8.0)

- fix wrong function_args, add missing function_args, align default semantics

with the defaults in pg (providing "null" as default means the argument is

optional).

- change return types of triggers from "opaque" to "trigger" (recommended since pg8.0)

- unify names of triggers *_tr

- removed some version dependencies of pg 7.2 and 7.3

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On my previous commit I added a not null constraint for name column on site_nodes, the problem is that main site node on oracle has a NULL name ( given the fact that empty strings are managed as NULL on Oracle ) therefore doesnt make sense to have such constraint.

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- Avoiding usage of coalesce function on site_nodes table columns in WHERE clause, this was leading to usage of sequencial scans which can be expensive when having a huge amount of site_nodes. Instead we go for isolation of the case when requestion a node with a null parent ( this would be the main site node ) and we use the = operator so the planner goes for a index scan.

- Adding not null constraint to site_nodes(name)

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1. Changed trigger functions from "opaque" to "trigger" to get rid of the

warnings during initial install (only for acs-kernel, there are a lot

elsewhere!)

2. Added "embeds" for postgresql and partially for oracle.

3. Added global parameters for postgresql and partially for oracle.

(oracle will be forthcoming shortly)

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fix the static cvs-id tags

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Remerge Timo's changes for tip 42,43, cf tip 53

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rollback of Timo's name, package_id commit; see TIP 53

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TIP#42,43: adding package_id and title to acs_objects table

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merge of changes on oacs-5-0 branch to oacs-5-0-0b4 tag

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Addresses bug 1148, bug 1149 (and performance problems generally with plpgsql functions).

eliminate with(isstrict,iscachable) in favor of the new syntax strict, immutable, stable.

bump version of acs-kernel, acs-content-repository to 5.0.0b4, upgrade scripts provided.

Fix bugs with the following plpgsql procs:

acs_object__initialize_attributes: raise exception on null input.

acs_object__set_attribute: exception on null input

acs_object_util__get_object_type: remove the exception after the return statement

apm__unregister_package: properly default cascade_p

apm__unregister_service: properly default cascade_p

content_item.get_parent_folder: infinite loop on input if not a direct descendent of a folder (fixed on oracle too)

content_item__get_context: exception on null input, fix bug in exception print (wrong variable name)

content_item__is_publishable: returned t on null and invalid items

content_item__is_subclass: did not short curcuit loop when subclass found

content_item__move: would silently ignore null target_id

content_revision__copy_attributes: generate an exception on null input

content_revision__export_xml: generate exception if called (unimplemented in postgres)

content_symlink__copy: generate exception if called (unimplemented)

apm_package__parent_id: returned -1 on not found rather than null

content_folder__is_registered: no default provided in code for include_subtypes

content_keyword__is_assigned: no default for recurse...

content_revision__import_xml: generate exception if called (unimplemented in postgres)

content_revision__index_attributes: generate exception if called (unimplemented in postgres)

content_type__trigger_insert_statement: now generates exception on null input (was silent failure)

number_src: infinite loop on null input

rule_exists: fix case folded lookup

Declare the following stable:

get_func_definition get_func_header acs_message__name

acs_object_type_insert_tr acs_message__message_p

acs_object_type__pretty_name acs_message__first_ancestor

acs_object_type__is_subtype_p acs_objects_get_tree_sortkey

acs_object__name acs_object__default_name

acs_object__get_attribute_storage acs_object__get_attribute

acs_object__check_path acs_mail_link__link_p

acs_object_util__object_type_exist_p acs_object_util__get_object_type

acs_object_util__type_ancestor_type_p

acs_object_util__object_ancestor_type_p acs_object_util__object_type_p

acs_rel_type__role_pretty_name acs_rel_type__role_pretty_plural

party__email person__name person__first_names person__last_name

application_group__group_id_from_package_id

acs_user__receives_alerts_p group_contains_p

acs_message_get_tree_sortkey acs_mail_body__body_p

acs_permission__permission_p acs_mail_multipart__multipart_p

content_keyword__get_heading acs_group__name acs_group__member_p

rel_segment__get rel_segment__name rel_constraint__get_constraint_id

rel_constraint__violation rel_constraint__violation_if_removed

content_keyword__get_description site_node_get_tree_sortkey

timezone__convert_to_local timezone__get_offset

timezone__get_rawoffset timezone__get_abbrev timezone__get_date

timezone__isdst_p rdbms_date apm__register_p timezone__get_id

doc__get_proc_header apm__parameter_p apm__id_for_name apm__get_value

apm__get_value apm_package__initial_install_p apm_package__singleton_p

apm_package__num_instances apm_package__name

apm_package__highest_version apm_package__parent_id

apm_package_type__num_parameters content_keyword__is_leaf

acs_sc_msg_type__get_id acs_sc_msg_type__get_name

acs_sc_contract__get_id acs_sc_contract__get_name

acs_sc_operation__get_id acs_sc_impl__get_id acs_sc_impl__get_name

acs_sc_binding__exists_p cr_items_get_tree_sortkey

content_keyword__is_assigned content_keyword__get_path

content_template__is_template cr_keywords_get_tree_sortkey

content_template__get_path table_exists column_exists trigger_exists

trigger_func_exists rule_exists content_folder__is_registered

content_folder__get_label content_folder__get_index_page

content_type__get_template content_type__trigger_insert_statement

content_type__is_content_type content_item__get_root_folder

content_item__is_published content_item__is_publishable

content_item__is_valid_child content_item__get_id

content_item__get_template content_item__get_content_type

content_item__get_live_revision content_item__get_revision_count

content_item__get_context content_item__get_latest_revision

content_item__get_best_revision content_item__get_title

content_item__get_title content_item__get_publish_date

content_item__is_subclass content_item__is_index_page

content_item__get_parent_folder content_revision__get_number

content_revision__revision_name content_revision__is_latest

content_revision__get_content content_symlink__is_symlink

content_symlink__resolve_content_type content_extlink__is_extlink

content_folder__is_folder content_folder__is_empty

file_storage__get_root_folder file_storage__get_package_id

forums_message__root_message_id content_symlink__resolve

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fixing creation of site_node under postgres

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added site_nodes_parent_id_idx based on results from scalability testing

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Added code to make use of David Walker's wonderfully abusive hack on the

pg_proc table that showed me how to write recursive SQL functions. We now

have good use of the index on tree_sortkey when climbing the tree, woo-hoo!

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Changed the representation of tree_sortkeys from "text" to "bit varying".

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1. Replaced more "tree_sortkey like" with "tree_sortkey between" expressions

2. Fixed a bad port of an Oracle query in site-nodes-procs.tcl and removed

a needless outer join from both versions in the process.

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1. Ripped out the '' vs. NULL string kludge, which was a stupid idea in the

first place (MY stupid idea, for the record).

2. More .xql file porting...

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added comments for default api values

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more cleanup of nullable strings in kernel

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