better sql 2003 todo list
This commit is contained in:
Jake Wheat
parent
e40ea1ad52
commit
c48b057457
165
TODO
165
TODO
|
|
@ -14,6 +14,97 @@ look at fixing the expression parsing completely
|
|||
represent natural and using/on in the syntax more close to the
|
||||
concrete syntax - don't combine in the ast
|
||||
|
||||
decide whether to represent numeric literals better, instead of a
|
||||
single string - break up into parts, or parse to a Decimal or
|
||||
something
|
||||
|
||||
rough SQL 2003 todo, including tests to write:
|
||||
multipart string literals
|
||||
national, unicode, hex, bit string literals, escapes
|
||||
string literal character sets
|
||||
more work on date and time literals
|
||||
support "" in delimited identifier
|
||||
unicode identifier
|
||||
support needed MODULE syntax in identifiers - already covered?
|
||||
review qualification names in identifiers support in various contexts
|
||||
(e.g. function app, table refs)
|
||||
add missing type name support: lots of missing ones here, including
|
||||
simple stuff like lob variations, and new things like interval,
|
||||
row, ref, scope, array, multiset type names.
|
||||
decide how to represent special identifiers including the session
|
||||
variables or whatever they are called like current_user
|
||||
host :parameter + indicator
|
||||
collation stuff, other character set stuff: list what is needed
|
||||
array[], multiset[]
|
||||
grouping - needs special syntax?
|
||||
review window function support and missing bits
|
||||
review case expressions
|
||||
next value for
|
||||
probably leave for now: subtypes, methods, new /routine, dereference
|
||||
array element reference
|
||||
multiset element reference - maybe nothing to do
|
||||
double check associativity, precedence (value exprs, joins, set ops)
|
||||
position expressions
|
||||
length expressions
|
||||
extract expression
|
||||
cardinality expression?
|
||||
check concatenations
|
||||
collations: review where can appear
|
||||
substring expressions
|
||||
regular expression substring function
|
||||
convert
|
||||
translate
|
||||
trim
|
||||
overlay
|
||||
specifictype
|
||||
datetime value expressions
|
||||
intervals
|
||||
array value constructors
|
||||
multiset value expressions, constructors
|
||||
row value constructors, expressions review
|
||||
review table value constructor exactly what is allowed
|
||||
lots more tests for from clause variations
|
||||
tablesamples
|
||||
unnest
|
||||
table function derived table
|
||||
only spec
|
||||
join variations, including union join
|
||||
review group by
|
||||
window clauses
|
||||
all fields reference with alias 'select * as (a,b,c) ... '
|
||||
search or cycle clause
|
||||
between symmetric/asymmetric
|
||||
in predicate review
|
||||
escape for like
|
||||
escape for [not] similar to
|
||||
regular expression syntax?
|
||||
quantified comparison predicate: represent different from current
|
||||
unique predicate
|
||||
normalized predicate
|
||||
match predicate
|
||||
overlaps predicate
|
||||
distinct from predicate
|
||||
member predicate
|
||||
submultiset predicate
|
||||
set predicate
|
||||
type predicate
|
||||
additional stuff review:
|
||||
interval stuff
|
||||
collate clause
|
||||
aggregate functions: lots of missing bits
|
||||
|
||||
|
||||
|
||||
review areas where this parser is too permissive, e.g. value
|
||||
expressions allowed where column reference names only should be
|
||||
allowed, such as group by, order by (perhaps there can be a flag or
|
||||
warnings or something), unqualified asterisk in select list
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
left factor/try removal:
|
||||
try in the interval literal
|
||||
|
|
@ -124,82 +215,10 @@ ast checker: checks the ast represents valid syntax, the parser
|
|||
check generated trees. Maybe this doesn't belong in this package
|
||||
though?
|
||||
|
||||
= sql support
|
||||
|
||||
collate? -> postfix operator which binds very tightly:
|
||||
a < 'foo' collate 'C'
|
||||
->
|
||||
Op "<" [Iden "a", SpecialOp "collate" [StringLit 'foo', StringLit
|
||||
'C']]
|
||||
also postfix in order by:
|
||||
select a from t order by a collate 'C': add to order by syntax, one
|
||||
collation per column
|
||||
and on group by
|
||||
a collation in ansi sql is a optional qualifier plus identifier, not a
|
||||
string
|
||||
have to do fixity for this to work
|
||||
|
||||
see what schema.fun(a) parses to and decide if this is correct
|
||||
|
||||
all ansi string literal syntax?
|
||||
|
||||
check ansi standard for operators (keywords and symbols)
|
||||
|
||||
proper character sets for identifiers, escapes, etc.
|
||||
|
||||
placeholder/positional arg
|
||||
= other sql support
|
||||
|
||||
full number literals -> other bases?
|
||||
apply, pivot
|
||||
within group aggregate syntax
|
||||
|
||||
try to do full review of sql2003 query syntax
|
||||
|
||||
make ansi dialect which only supports ansi sql. Maybe there is a use
|
||||
for a separate SQL 92, 99 and 2003 dialects?
|
||||
|
||||
string literals:
|
||||
N'
|
||||
B'
|
||||
X'
|
||||
U&' ?
|
||||
looks like two string literals separated by any whitespace are
|
||||
merged, which isn't what the postgres manual claims is the standard
|
||||
plus something introducer, character set thing
|
||||
union join?
|
||||
corresponding by
|
||||
from in substring is not optional in ansi
|
||||
the keyword from is optional in trim iff there is neither
|
||||
leading,etc. and explicit char
|
||||
extract can accept 'timezone hour' and 'timezone minute' for the
|
||||
extraction field. Could hardcode the complete allowed list in the
|
||||
parser?
|
||||
bunch of timezone keyword stuff
|
||||
interval a to b
|
||||
array specification int array or int array[5] - type name
|
||||
typenames: scope, multiset,row type, ref type
|
||||
unique subquery -> returns true if all the rows in the subquery are
|
||||
distinct
|
||||
match predicate <row value constructor> MATCH [ UNIQUE ] [ PARTIAL |
|
||||
FULL ] <table subquery>
|
||||
clob type: CLOB(4M) - M suffix on the precision
|
||||
array element reference a[4]
|
||||
regular expression substring function
|
||||
between symmetric
|
||||
unicode delimited identifier
|
||||
character set postfix type op for string types + collate on string types
|
||||
next value for
|
||||
treat as
|
||||
generalized invocation?
|
||||
position using
|
||||
multiset stuff
|
||||
table sample
|
||||
unnest
|
||||
only
|
||||
window frame exclusion: complete window support?
|
||||
select t.* as (a,b,c) from t
|
||||
search or cycle clause for ctes
|
||||
normalized
|
||||
|
||||
other dialect targets:
|
||||
postgres
|
||||
|
|
|
|||
|
|
@ -1093,7 +1093,7 @@ TODO: work out the exact syntax and add
|
|||
<SQL parameter reference> ::= <basic identifier chain>
|
||||
|
||||
already covered above. Why on earth do they introduce so many aliases?
|
||||
How does this do anything except obfuscate everything?
|
||||
How does this do anything apart from obfuscate everything?
|
||||
|
||||
|
||||
|
||||
|
|
@ -2485,7 +2485,7 @@ Specify a test for matching rows.
|
|||
|
||||
<match predicate part 2> ::= MATCH [ UNIQUE ] [ SIMPLE | PARTIAL | FULL ] <table subquery>
|
||||
|
||||
TODO: match predicat
|
||||
TODO: match predicate
|
||||
|
||||
== 8.13 <overlaps predicate> (p405)
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue