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Diffstat (limited to 'src/interfaces/ecpg/lib/README.dynSQL')
| -rw-r--r-- | src/interfaces/ecpg/lib/README.dynSQL | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/src/interfaces/ecpg/lib/README.dynSQL b/src/interfaces/ecpg/lib/README.dynSQL new file mode 100644 index 00000000000..fedcf80402d --- /dev/null +++ b/src/interfaces/ecpg/lib/README.dynSQL @@ -0,0 +1,20 @@ +descriptor statements have the following shortcomings + +- up to now the only reasonable statement is + FETCH ... INTO SQL DESCRIPTOR <name> + no input variables allowed! + + Reason: to fully support dynamic SQL the frontend/backend communication + should change to recognize input parameters. + Since this is not likely to happen in the near future and you + can cover the same functionality with the existing infrastructure + I'll leave the work to someone else. + +- string buffer overflow does not always generate warnings + (beware: terminating 0 may be missing because strncpy is used) + :var=data sets sqlwarn accordingly (but not indicator) + +- char variables pointing to NULL are not allocated on demand + +- string truncation does not show up in indicator + |