* test: slq2sql more test cases; now executes the generated query
* groupby: first test case working against all DBs
* sakila: added sqlserver 2019 source
* groupby: tests for groupby synonyms
* groupby: final touches
* sakila: initial test data
* sakila: more test data
* sakila: yet more test data setup
* whitespace cols: now working for sqlite
* grammar cleanup
* whitespace cols: now working inside count() func for sqlite
* whitespace cols: tests mostly passing; begining refactoring
* grammar: refactor handle
* grammar: more refactoring
* grammar: rename selElement to selector
* wip
* all tests passing
* all tests passing
* linting
* driver: implement CurrentSchema for all driver.SQLDriver impls
* driver: tests for AlterTableRename and AlterTableRenameColumn
* undo reformat of SQL
* undo reformat of SQL
* undo reformat of SQL
* undo reformat of SQL
* Clean up misc text
* config: will repair itself if active source is corrupted
* Clean up error handling code
* CHANGELOG update
* Update config tests to allow invalid active source
* Expose source.Set.Data() method
* jsonw.writeJSON cleaned up
* sq add now respects --json
* Location strings are subject to more scrutiny
* Ignore .db files in project dir
* sq add is more restrictive about location string
* source.RedactedLocation now uses 'xxxxx' per stdlib url.URL.Redacted()
* Update changelog for v0.23.0
* typos
* renamed cmdFlagChanged to flagChanged
* initial stdin stuff working
* wip: mostly working as expected
* Docs and lots of cleanup
* Mostly docs
* fixed behavior of source.LocationWithPassword, and tests
* wip
* made progress on new SQLite type stuff
* we're getting places
* largely working now
* tidying up
* almost there
* time to deal with failing tests
* seemed to have fixed sqlserver issue
* seems to all be fixed
* minor tidy up
* yet more linting
* yet more linting
* yet more linting
* yet more linting
* yet more linting
* yet more linting
* yet more linting
* yet more linting
* debugging
* generic retry functionality; some additions to stringz.go
* fiddling with magefile_sakila
* added test lock function testh.Lock
* bunch of linting, goimports, what not
* upgraded mattn/go-isatty version because it was importing a incompatible version of golang.org/x/sys/unix
* changed parsing of SQL Server DSN due to changes to url.ParseQuery no longer accepting semicolon
* updated xo/dburl pkg to v0.11.0
* removed dead underscore assignment
* updated GH workflow go action to 1.19
* BaseFragmentBuilder now quotes table and col names for joins
* Refactored libsq.engine so that the SQL generated from SLQ input can be tested
* Deleted dead code; additional comments
