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# Date Author Comment
3236 07/06/2012 09:05 AM Aaron Marcuse-Kubitza

sql.py: run_query(): Always output the log message after the query is run, so that it can be output with profiling statistics in the log message header

3235 07/05/2012 03:16 PM Aaron Marcuse-Kubitza

Regenerated vegbien.ERD exports

3234 07/05/2012 03:13 PM Aaron Marcuse-Kubitza

schemas/vegbien.sql: locationevent: Added covering lookup indexes on the unique constraints to enable fast merge joins in column-based import. Removed no longer needed individual-column lookup indexes because the constraint-covering lookup indexes now handle lookups. This also avoids index bloat.

3233 07/05/2012 03:00 PM Aaron Marcuse-Kubitza

schemas/vegbien.sql: specimenreplicate: Removed no longer needed individual-column lookup indexes because the constraint-covering lookup indexes now handle lookups. This also avoids index bloat.

3232 07/05/2012 02:57 PM Aaron Marcuse-Kubitza

schemas/vegbien.sql: specimenreplicate: Added covering lookup indexes on the unique constraints to enable fast merge joins in column-based import

3231 07/05/2012 02:48 PM Aaron Marcuse-Kubitza

schemas/vegbien.sql: specimenreplicate: Added CHECK constraint which ensures that there is at least one key to sufficiently uniquely identify the specimenreplicate

3230 07/05/2012 02:44 PM Aaron Marcuse-Kubitza

inputs/CTFS/maps/VegX.organisms.csv: Mapped VegX sourceAccessionCode = VegBIEN plantobservation,specimenreplicate.sourceaccessioncode so that specimenreplicate would have a required key

3229 07/05/2012 02:38 PM Aaron Marcuse-Kubitza

mappings/VegX-VegBIEN.stems.csv: Sort the plantobservation.sourceaccessioncode/specimenreplicate.sourceaccessioncode mapping with the other _ifs so the adjacent node merging works properly and it gets created before _ignore removes voucherType

3228 07/05/2012 02:34 PM Aaron Marcuse-Kubitza

mappings/VegX-VegBIEN.stems.csv: Also map plantobservation.sourceaccessioncode to specimenreplicate.sourceaccessioncode so specimenreplicate always has a key and will never be underconstrained

3227 07/05/2012 02:12 PM Aaron Marcuse-Kubitza

xml_func.py: process(): Fixed bug where an evaluated XML function might create a node of the same name as an existing node, but these nodes would not be merged even though they referred to the same object, by merging siblings of a newly-evaluated (replaced) node if they have the same name

3226 07/05/2012 02:09 PM Aaron Marcuse-Kubitza

xml_dom.py: Added merge() and merge_adjacent()

3225 07/05/2012 02:08 PM Aaron Marcuse-Kubitza

xml_dom.py: replace_with_text(): Return the new node

3224 07/05/2012 12:33 PM Aaron Marcuse-Kubitza

mappings/VegX-VegBIEN.stems.csv: Indirect voucher mappings: Removed no longer needed ":[*_id/taxonoccurrence]" because a specimenreplicate is a taxonoccurrence, so it doesn't need to have an empty taxonoccurrence

3223 07/05/2012 12:27 PM Aaron Marcuse-Kubitza

mappings/VegX-VegBIEN.stems.csv: Fixing specimenreplicate->taxonoccurrence mapping bug where taxonoccurrence_id is no longer used as an fkey because it's instead a pkey inherited from taxonoccurrence, by instead using the new fkey to plantobservation for direct vouchers. Note that a duplicate aggregateoccurrence is created, because the _if XML function runs after the XPaths have created the initial tree, and thus the nodes it pulls forward do not automatically get merged with adjacent nodes of the same name. This will eventually need to be fixed by auto-merging the nodes.

3222 07/05/2012 12:00 PM Aaron Marcuse-Kubitza

schemas/vegbien.sql: specimenreplicate: Fixing specimenreplicate->taxonoccurrence mapping bug where taxonoccurrence_id is no longer used as an fkey because it's instead a pkey inherited from taxonoccurrence, by instead adding an fkey to plantobservation for direct vouchers. Also, it makes more sense for a specimenreplicate to directly voucher the plant it came from rather than that plant's taxonoccurrence, because a direct voucher is a closer relationship to the plant.

3221 07/05/2012 11:22 AM Aaron Marcuse-Kubitza

mappings/VegX-VegBIEN.stems.csv: Map collectiondate to specimenreplicate via voucher when the voucher is indirect, rather than always directly to the taxonoccurrence, because the collectiondate relates to the specimenreplicate, not the taxonoccurrence, and is not necessarily 1:1 with it

3220 07/05/2012 11:17 AM Aaron Marcuse-Kubitza

mappings: Updated for_review VegX-VegBIEN mappings, which hadn't been auto-updated because of a modification time issue. (mappings/VegX-VegBIEN.stems.csv was replaced with an older version, which did not trigger make to remake files depending on it.)

3219 07/05/2012 10:28 AM Aaron Marcuse-Kubitza

schemas/vegbien.sql: locationevent: Added sql_gen-compatible indexes on all columns in the locationevent_unique_project_authorcode UNIQUE index: Changed locationevent_project_id index to use COALESCE. Added index on obsstartdate.

3218 07/05/2012 10:19 AM Aaron Marcuse-Kubitza

schemas/vegbien.sql: locationevent: Removed no longer needed COALESCE index on location_id now that location_id is NOT NULL

3217 07/05/2012 10:16 AM Aaron Marcuse-Kubitza

schemas/vegbien.sql: locationevent: Fixed bug where locationevent_unique_location index was overconstraining locationevent when a sourceaccessioncode or obsstartdate was specified, by combining the locationevent_unique_location, locationevent_unique_accessioncode, and locationevent_unique_location_date indexes into one COALESCE index on the combined fields of those indexes

3216 07/05/2012 10:10 AM Aaron Marcuse-Kubitza

schemas/vegbien.sql: locationevent: Made location_id required because every locationevent should have a location, even one with no locationdeterminations. This also avoids the creation of a parent locationevent when subplots are not being used.

3215 07/05/2012 09:48 AM Aaron Marcuse-Kubitza

mappings/VegX-VegBIEN.stems.csv: Removed _collapse where it's no longer needed because sql_io.put() handles that now. Note that each locationevent will get an empty commclass, whether or not there are any commdeterminations. This can later be used to add new commdeterminations.

3214 07/05/2012 09:45 AM Aaron Marcuse-Kubitza

schemas/vegbien.sql: commclass: Changed commclass_unique to COALESCE classnotes so that there is only one commclass for a locationevent when the commclasses are not separately named. (Currently classnotes is used as the class name field, commname being the name of the community itself.)

3213 07/05/2012 09:33 AM Aaron Marcuse-Kubitza

schemas/vegbien.sql: commdetermination: Made commconcept_id NOT NULL because it doesn't make sense to have a commdetermination on nothing. Note that the commname field in commdetermination is not used for making determinations (and may need to be removed to avoid confusion); commname.commname is used instead.

3212 07/05/2012 09:28 AM Aaron Marcuse-Kubitza

schemas/vegbien.sql: locationevent: Added COALESCE index on location_id for use by column-based import

3211 07/05/2012 09:24 AM Aaron Marcuse-Kubitza

mappings/VegX-VegBIEN.stems.csv: Removed _collapse where it's no longer needed because sql_io.put() handles that now. Note that each plantobservation will get an empty stemobservation, whether or not there are any stemtags. This can later be used to add further stemtags.

3210 07/05/2012 08:58 AM Aaron Marcuse-Kubitza

mappings/VegX-VegBIEN.stems.csv: Removed _collapse where it's no longer needed because sql_io.put() handles that now

3209 07/05/2012 08:31 AM Aaron Marcuse-Kubitza

schemas/vegbien.sql: location: Made datasource_id, sourceaccessioncode NOT NULL to ensure that all locations are uniquely identifiable by their datasource's unique key (sourceaccessioncode)

3208 07/05/2012 08:28 AM Aaron Marcuse-Kubitza

sql_io.py: put(): Handle NullValueExceptions by returning a NULL pkey, just like put_table() (column-based import) does

3207 07/03/2012 05:29 PM Aaron Marcuse-Kubitza

VegBIEN: Fixing import issue related to duplicate entries in tables with children, where when a new table entry duplicates an existing entry, the 1:1 tables of that table and those tables' children are not merged, causing them to become orphaned. It is described in detail at <https://projects.nceas.ucsb.edu/nceas/projects/bien/wiki/Import_issues#Merging-duplicates-with-children&gt;, including the rationale for this solution. Note that this is not a bug in column-based import, it applies to row-based import as well. This commit fixes the issue for locationevent->location in plots data, by also mapping locationevent's unique keys to location.sourceaccessioncode and setting location.datasource_id.

3206 07/03/2012 03:59 PM Aaron Marcuse-Kubitza

sql.py: DbConn.run_query(): Separate the data source comment from the query with a tab in the executed query but a \r in the logged query, so that the query will be shown on the same line as the data source comment in pg_stat_activity, but be hidden by the following line when cating the file and be put on a separate line when viewed in a text editor. This causes the first line of the query to be at the left edge when the log file is viewed, so that it looks more natural.

3205 07/03/2012 03:15 PM Aaron Marcuse-Kubitza

README.TXT: Data import: Import data into VegBIEN: Added command to use for column-based import

3204 07/03/2012 02:10 PM Aaron Marcuse-Kubitza

schemas/vegbien.sql: locationevent: Allow a locationevent to be uniquely specified by its location (which is now datasource-scoped) and start date

3203 07/03/2012 01:26 PM Aaron Marcuse-Kubitza

VegBIEN: Fixing import issue related to duplicate entries in tables with children, where when a new table entry duplicates an existing entry, the 1:1 tables of that table and those tables' children are not merged, causing them to become orphaned. It is described in detail at <https://projects.nceas.ucsb.edu/nceas/projects/bien/wiki/Import_issues#Merging-duplicates-with-children&gt;, including the rationale for this solution. Note that this is not a bug in column-based import, it applies to row-based import as well. This commit fixes the issue for specimenreplicate->...->location, by also mapping specimenreplicate's unique keys to location.sourceaccessioncode and setting location.datasource_id.

3202 07/03/2012 12:47 PM Aaron Marcuse-Kubitza

schemas/vegbien.sql: locationevent: Allow to be uniquely specified by location_id. This is useful for specimens data where there is one location for every locationevent.

3201 07/03/2012 12:27 PM Aaron Marcuse-Kubitza

schemas/vegbien.sql: location: Added datasource_id and sourceaccessioncode so locations can be uniquely specified by the input datasource, rather than being created automatically for each locationevent

3200 07/03/2012 11:45 AM Aaron Marcuse-Kubitza

schemas/filter_ERD.csv: Add back taxondetermination->taxonoccurrence fkey because that has been replaced by a trigger in the SQL

3199 07/03/2012 11:06 AM Aaron Marcuse-Kubitza

VegBIEN: Fixing import issue related to duplicate entries in tables with children, where when a new table entry duplicates an existing entry, the 1:1 tables of that table and those tables' children are not merged, causing them to become orphaned. It is described in detail at <https://projects.nceas.ucsb.edu/nceas/projects/bien/wiki/Import_issues#Merging-duplicates-with-children&gt;, including the rationale for this solution. Note that this is not a bug in column-based import, it applies to row-based import as well. This commit fixes the issue for specimenreplicate->taxonoccurrence.

3198 07/03/2012 07:40 AM Aaron Marcuse-Kubitza

inputs/import.stats.xls: Updated with remaining stats from most recent import

3197 07/02/2012 03:52 PM Aaron Marcuse-Kubitza

PostgreSQL-MySQL.csv: Remove INHERITS clauses

3196 07/02/2012 02:37 PM Aaron Marcuse-Kubitza

schemas/vegbien.ERD.mwb: Fixed lines

3195 07/02/2012 02:24 PM Aaron Marcuse-Kubitza

db_xml.py: put_table(): Moved in_row_ct updating to Subsetting section so the cursor's rowcount can be used directly

3194 07/02/2012 02:18 PM Aaron Marcuse-Kubitza

db_xml.py: put_table(): Subsetting in_table: Don't count # rows because this takes awhile for large datasets. Instead, use the chunking algorithm in digir_client, which ends the loop when a partial or empty partition is encountered.

3193 07/02/2012 01:58 PM Aaron Marcuse-Kubitza

inputs/import.stats.xls: Updated with new stats from an independent import

3192 07/02/2012 01:20 PM Aaron Marcuse-Kubitza

schemas/vegbien.sql: Fixed UNIQUE INDEXes that were still using COALESCE to use COALESCE in order to match what sql_gen.EnsureNotNull uses

3191 07/02/2012 12:41 PM Aaron Marcuse-Kubitza

schemas/vegbien.sql: specimenreplicate: UNIQUE INDEX on catalognumber_dwc: Added collectioncode_dwc so that datasources that specify it in addition to the institution_id (such as aggregators) will not need to have catalognumbers be unique within an institution

3190 07/02/2012 12:30 PM Aaron Marcuse-Kubitza

inputs/import.stats.xls: Updated with more stats from latest import

3189 07/02/2012 11:44 AM Aaron Marcuse-Kubitza

inputs/import.stats.xls: Updated with initial stats from latest import. Reformatted to put successive runs of column-based next to each other, so they could be directly compared and so that the row-based data wouldn't need to be duplicated. Added empty-value checks to formulas so that they don't need to be manually deleted when one of their inputs is empty.

3188 07/02/2012 10:32 AM Aaron Marcuse-Kubitza

input.Makefile: Documentation: import/steps.by_col.sql: Fixed bug where needed to run import in test mode

3187 07/02/2012 10:12 AM Aaron Marcuse-Kubitza

sql_io.py: put_table(): Don't set pkeys of missing rows to default value if out_table is a SQL function, because then there is already an entry for every row

3186 07/02/2012 10:03 AM Aaron Marcuse-Kubitza

bin/map: by_col: Reuse existing out_db connection for in_db instead of opening separate connection

3185 07/02/2012 09:50 AM Aaron Marcuse-Kubitza

sql.py: mk_select(): Replaced newlines with spaces when query is simple enough to fit on one line

3184 07/02/2012 09:40 AM Aaron Marcuse-Kubitza

db_xml.py: put_table(): Set db.src to help identify the data source in pg_stat_activity

3183 07/02/2012 09:39 AM Aaron Marcuse-Kubitza

sql.py: DbConn: Added src config param, which in autocommit mode, will be included in a comment in every query, to help identify the data source in pg_stat_activity

3182 07/02/2012 09:38 AM Aaron Marcuse-Kubitza

sql_gen.py: Added lstrip() to remove comments

3181 07/02/2012 09:13 AM Aaron Marcuse-Kubitza

sql.py: mk_insert_select(): Added src param to help identify the data source in pg_stat_activity

3180 07/02/2012 08:33 AM Aaron Marcuse-Kubitza

mappings/DwC2-VegBIEN.specimens.csv: Mapped institutionCode. This will enable datasources to use specimenreplicate's institution_id index for duplicate elimination.

3179 07/02/2012 08:31 AM Aaron Marcuse-Kubitza

input.Makefile: Prompt user to accept test, instead of providing command line func for doing so

3178 07/02/2012 07:45 AM Aaron Marcuse-Kubitza

schemas/vegbien.sql: specimenreplicate: UNIQUE INDEX on catalognumber_dwc: Added institution_id so that datasources that specify it (such as aggregators) will not need to have catalognumbers be globally unique. Once the institution_id is mapped to, this will fix a bug where rows with the same catalognumber were assumed to be duplicates even though they were from different institutions. This should also avoid the need to do any duplicate elimination joins when importing specimenreplicate, speeding up column-based import.

3177 07/02/2012 07:32 AM Aaron Marcuse-Kubitza

schemas/vegbien.sql: specimenreplicate: Renamed museum_id to institution_id to correspond with DwC's institutionCode, so that it would be more obvious where to map institutionCode fields to

3176 07/02/2012 07:16 AM Aaron Marcuse-Kubitza

inputs/import.stats.xls: Updated to include run times for rest of datasources for most recent column-based import

3175 06/29/2012 08:09 AM Aaron Marcuse-Kubitza

db_xml.py: put_table(): Subsetting in_table: Prepend schema to subset table name so that in pg_stat_activity, it's clear which datasource a particular query is from

3174 06/29/2012 07:46 AM Aaron Marcuse-Kubitza

sql_io.py: cast_temp_col(): add_col()'s distinguishing comment param: Add the type in case the same input column is being cast to different types, and both types have the same first word (causing their new column names to be the same)

3173 06/29/2012 07:42 AM Aaron Marcuse-Kubitza

sql_io.py: cast_temp_col(): Name the new column with only the first word of the type, to save space in the limited identifier length

3172 06/29/2012 07:41 AM Aaron Marcuse-Kubitza

strings.py: Added first_word()

3171 06/29/2012 07:35 AM Aaron Marcuse-Kubitza

sql_io.py: cast_temp_col(): Use sql_gen.suffixed_col() to create the new column name

3170 06/29/2012 06:16 AM Aaron Marcuse-Kubitza

inputs/import.stats.xls: Added run time for SALVIAS organisms, which just finished

3169 06/29/2012 06:14 AM Aaron Marcuse-Kubitza

inputs/import.stats.xls: Use [1]-style footnotes because copying and pasting to Gmail doesn't preserve the superscripts

3168 06/29/2012 06:11 AM Aaron Marcuse-Kubitza

inputs/import.stats.xls: Updated for latest simultaneous column-based import

3167 06/29/2012 04:42 AM Aaron Marcuse-Kubitza

sql_io.py: cast_temp_col(): Don't automatically create an index on the new column, because it doesn't necessarily need an index and the main index used for the join is now added automatically by distinct_table()

3166 06/29/2012 04:39 AM Aaron Marcuse-Kubitza

sql.py: flatten(): Don't automatically create indexes on all columns, because most columns don't need indexes and the main index used for the join is now added automatically by distinct_table()

3165 06/29/2012 04:35 AM Aaron Marcuse-Kubitza

sql.py: Removed no longer needed add_index_col() and ensure_not_null() because we are not using index columns

3164 06/29/2012 04:33 AM Aaron Marcuse-Kubitza

sql.py: add_index(): Don't create index columns for nullable columns, because they require indexes to be created on all columns in order to use a distinct_table() temp table. Also, now that we are no longer using LEFT JOINs, the COALESCE call would only be evaluated once (in the plain JOIN) in the event that PostgreSQL doesn't use an index on a COALESCE expression.

3163 06/29/2012 03:30 AM Aaron Marcuse-Kubitza

schemas/vegbien.sql: location: Dropped unique constraint on lat/long because it covered only some rows, which interfered with column-based import's selection of different insert methods based on the presence or absence of duplicate keys. (With the constraint, locations with coordinates would have duplicates eliminated, but locations without coordinates would not be able to find which row was added for a particular location because there was no lookup key to join on, and would all just use the first inserted row.) The previous behavior didn't make much sense anyway, because it would assert that two locationevents occurred in the same place just because they had the same coordinates, which may not have been precise enough to make this determination. Asserting that two locationevents occurred in the same place is really part of the secondary validation, not the import process.

3162 06/29/2012 01:58 AM Aaron Marcuse-Kubitza

sql.py: DbConn: Fixed bug where Exceptions did not have the query appended if the query was not run in cacheable mode, by moving _add_cursor_info() from DbCursor.execute() to run_query() so it would also get called for non-cacheable queries that use a native cursor rather than a wrapper. Fixed bug where non-cacheable queries were not autocommitted, by moving self.do_autocommit() from DbCursor.execute() to run_query() so it would also get called for non-cacheable queries that use a native cursor rather than a wrapper.

3161 06/29/2012 01:54 AM Aaron Marcuse-Kubitza

sql.py: DbConn._db(): Record that a transaction is already open before setting the search_path so that a query is never run with an _savepoint value less than 1 (manual transactions are not supported yet)

3160 06/29/2012 01:52 AM Aaron Marcuse-Kubitza

sql.py: DbConn.with_savepoint(): Increment _savepoint before running queries so they don't get autocommitted

3159 06/29/2012 01:10 AM Aaron Marcuse-Kubitza

sql.py: empty_temp(): Empty temp tables even in debug_temp mode, so that it can be seen which tables have been garbage collected and disk space leaks can be detected. This will not affect the external re-runnability of slow queries in debug_temp mode, as long as the user aborts the debug_temp import while the slow query is still running.

3158 06/29/2012 01:07 AM Aaron Marcuse-Kubitza

sql_gen.py: ColDict: Use OrderedDict so that order of keys in input dict (if ordered) will be preserved. This should ensure that tempt table unique indexes have their columns in the same order as the output table, so that a merge join can be used.

3157 06/29/2012 01:01 AM Aaron Marcuse-Kubitza

util.py: dict_subset(): Use OrderedDict so that order of keys in input dict (if ordered) will be preserved

3156 06/29/2012 12:55 AM Aaron Marcuse-Kubitza

main Makefile: python-Darwin: Added pip installation instructions. python-Linux: Added ordereddict.

3155 06/29/2012 12:04 AM Aaron Marcuse-Kubitza

sql.py: DbConn.col_info(): cacheable param defaults to True now that callers explicitly turn off cacheable when needed

3154 06/29/2012 12:00 AM Aaron Marcuse-Kubitza

sql.py: add_index_col(): Explicitly set update()'s col_info caching depending on whether col_info will be changed later by add_not_null()

3153 06/28/2012 11:55 PM Aaron Marcuse-Kubitza

sql.py: mk_update(): Renamed cacheable param to cacheable_ so it wouldn't conflict with update()'s cacheable param

3152 06/28/2012 11:54 PM Aaron Marcuse-Kubitza

sql.py: mk_update(): Added cacheable param to set whether column structure information used to generate the query can be cached

3151 06/28/2012 11:40 PM Aaron Marcuse-Kubitza

sql.py: add_index_col(): Explicitly set col_info()'s caching depending on whether col_info will be changed later by add_not_null()

3150 06/28/2012 11:35 PM Aaron Marcuse-Kubitza

sql.py: DbConn.col_info(): Allow caller to specify whether query is cacheable

3149 06/28/2012 11:22 PM Aaron Marcuse-Kubitza

csv2db: Fixed bug where CREATE TABLE statement was cached, causing it not to be re-executed after a rollback due to a failed COPY FROM. Avoid re-creating the table after a failed COPY FROM, and instead just remove any existing rows.

3148 06/28/2012 11:09 PM Aaron Marcuse-Kubitza

sql.py: add_index(): Don't generate a unique name for the index because the database does that automatically

3147 06/28/2012 11:00 PM Aaron Marcuse-Kubitza

csv2db: Vacuum table instead of just reanalyzing it because for some reason reanalyzing it isn't enough to fix the cached row count (causing pgAdmin3 to report that the table needs to be vacuumed)

3146 06/28/2012 10:54 PM Aaron Marcuse-Kubitza

csv2db: Don't add indexes on the created table because they use up more disk space than the table itself and currently aren't used. (The import process adds indexes on each iteration's column subset instead.)

3145 06/28/2012 10:21 PM Aaron Marcuse-Kubitza

db_xml.py: partition_size: Turning partitioning back on (with a larger limit), since the largest datasources' temp tables are still too big

3144 06/28/2012 10:20 PM Aaron Marcuse-Kubitza

sql_io.py: put_table(): Fixed bug where if there were multiple unique constraints that were violated, only the distinct temp table for the last one would get garbage-collected

3143 06/28/2012 09:01 PM Aaron Marcuse-Kubitza

db_xml.py: partition_size: Set to sys.maxint to disable partitioning. The last bugfix, which avoided returning a large result set to the client which was never read, seems to have fixed the disk space leak, so it's worth reattempting a full simultaneous import.

3142 06/28/2012 08:30 PM Aaron Marcuse-Kubitza

db_xml.py: put_table(): Subsetting in_table: Truncate in_table when finished with it, to avoid temp table disk space leaks

3141 06/28/2012 07:56 PM Aaron Marcuse-Kubitza

sql.py: insert_select(): If caller is only interested in the rowcount (if returning == None), keep the NULL rows for each insert on the server using CREATE TABLE AS. (CREATE TABLE AS sets rowcount to # rows in query, so rowcount will still be set correctly.)

3140 06/28/2012 04:59 PM Aaron Marcuse-Kubitza

top-level map: Added support for custom public schema, to be able to run imports and tests simultaneously (e.g. on a dev machine)

3139 06/27/2012 10:56 PM Aaron Marcuse-Kubitza

csv2db: Fixed bug where table needed to be a sql_gen.Table object with the proper schema, so that errors_table would be created in the correct schema. Removed no longer needed changing of the search_path.

3138 06/27/2012 10:55 PM Aaron Marcuse-Kubitza

csv2db: Fixed bug where table needed to be a sql_gen.Table object with the proper schema, so that errors_table would be created in the correct schema. Removed no longer needed changing of the search_path.

3137 06/27/2012 10:12 PM Aaron Marcuse-Kubitza

sql.py: DbConn.with_savepoint(): Open a new transaction if one is not already open