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Update documentation of sqlite3_column() for clarity. Update evidence marks

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on test cases.

FossilOrigin-Name: ec2d47a1db2349d5c9b4fe465506e0e347f77921
This commit is contained in:
drh
2013-11-27 19:17:49 +00:00
parent b87875ac40
commit 9338642ca6
5 changed files with 28 additions and 25 deletions
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15
test/e_expr.test
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@ -1407,10 +1407,12 @@ do_test e_expr-26.1.6 { set ::evalcount } {5}
#-------------------------------------------------------------------------
# Test statements related to CAST expressions.
#
# EVIDENCE-OF: R-65079-31758 Application of a CAST expression is
# different to application of a column affinity, as with a CAST
# expression the storage class conversion is forced even if it is lossy
# and irrreversible.
# EVIDENCE-OF: R-20854-17109 A CAST conversion is similar to the
# conversion that takes place when a column affinity is applied to a
# value except that with the CAST operator the conversion always takes
# place even if the conversion lossy and irreversible, whereas column
# affinity only changes the data type of a value if the change is
# lossless and reversible.
#
do_execsql_test e_expr-27.1.1 {
CREATE TABLE t3(a TEXT, b REAL, c INTEGER);
@ -1594,8 +1596,9 @@ do_expr_test e_expr-30.4.1 { CAST('' AS INTEGER) } integer 0
do_expr_test e_expr-30.4.2 { CAST('not a number' AS INTEGER) } integer 0
do_expr_test e_expr-30.4.3 { CAST('XXI' AS INTEGER) } integer 0
# EVIDENCE-OF: R-00741-38776 A cast of a REAL value into an INTEGER will
# truncate the fractional part of the REAL.
# EVIDENCE-OF: R-02752-50091 A cast of a REAL value into an INTEGER
# results in the integer between the REAL value and zero that is closest
# to the REAL value.
#
do_expr_test e_expr-31.1.1 { CAST(3.14159 AS INTEGER) } integer 3
do_expr_test e_expr-31.1.2 { CAST(1.99999 AS INTEGER) } integer 1