Non ASCII Characters in tags inserting in to postgres database tabel

Ignition
1

Hi i am inserting a tag in to databse table

before inserting tag name
[default]Montreal/IN40RM/Quality/Montreal_Moulin/InspectionPoint/InspectionPointMeasures/Measure/Eau_combinée_Marmite_1/CharacteristicValue

inserted tag in database table
[default]Montreal/IN40RM/Quality/Montreal_Moulin/InspectionPoint/InspectionPointMeasures/Measure/Eau_combinée_Marmite_1/CharacteristicValue

how to insert the tag with Non ASCII Characters to database?

2

This is almost certainly a database configuration problem (encoding), which cannot be changed on existing tables. You will have to shut down, move the data, recreate with a UTF8 encoding, and move the data back.

1 Like
3

can’t we able to do encoding for upcoming records in that table?

4

No, encoding in PostgreSQL is a database setting. Modern Linux distros commonly set up UTF8 encoding to avoid problems. Historical defaults for PostgreSQL are 7-bit ASCII or 8-bit Latin1, IIRC.

By shutting down, I mean the whole database and all of its tables will have to be fixed.

But look at your database’s properties to make sure this is the problem.

2 Likes
5

Is there any other way can we do…

Query the records from database… can we able to do UTF8 encoding and show data in power table?

6

One more reason to never use non-ASCII characters in tag names, db fields, table names, …

5 Likes
7

If you really have a misconfigured DB, I think the answer is no. You need some amount of downtime.

Consider standing up a new DB instance at a new address, use logical replication to duplicate the data, then switch to the new instance. That would minimize your downtime (a few minutes).

3 Likes
8

Hi, I have checked database is configured properly.

I have used unicode(tagname) to insert in to database. Now its inserting properly

But i am query the record from database
for example my record
[ [default]Montreal/IN40RM/Quality/Montreal_Moulin/InspectionPoint/InspectionPointMeasures/Measure/Eau_combinée_Marmite _1/CharacteristicValue, [default]Montreal/IN40RM/Quality/Montreal_Moulin/InspectionPoint/InspectionPointMeasures/Measure/Eau_combinée_Marmite _1/Maxvalue]

its in list format

but when i use Split function

i am again getting this combinée_Marmite this format

how to use split without changing the format?

tagpaths =  selectpath.getValueAt(0,0)
		#print type(tagpaths)
		tagpaths= tagpaths[1:-1]
		tagsplit= tagpaths.split(', ')
		#print unicode(tagsplit).decode('utf-8')
		listIn = tagsplit
		listOut = [str(i) for i in listIn]

		remove_duplicate = list(set(listOut))
		#ds = system.dataset.toDataSet(['selectedPath'], [[x] for x in listOut])
		ds = system.dataset.toDataSet(['selectedPath'], [[x] for x in remove_duplicate])

this is the code i am using

9

That's good.

Don't use str(). Use unicode() instead. (making listOut)

1 Like
10

Its working now thanks